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    21 Things That Must Have Been Designed By Geniuses

    Prepare to be inspired.

    We hope you love the products we recommend! All of them were independently selected by our editors. Just so you know, BuzzFeed may collect a share of sales or other compensation from the links on this page if you decide to shop from them. Oh, and FYI — prices are accurate and items in stock as of time of publication.

    1. A watermelon slicer so you can achieve perfectly cut cubes in mere minutes. It'll come in handy during your next backyard BBQ when your guests are craving a refreshing fruit salad., Amazon

    There are no sharp edges so it's safe for kids, too! When you purchase, you'll also receive a scooper to create little fruit balls.

    Promising review: "This gadget is pretty neat; I am pretty happy with my purchase. I love eating water melon but hate cutting them into dices. It is so easy to use and completely transformed how we eat watermelon. If you don't own one, try it, you will love it." —Jiajian Xu

    Get it from Amazon for $5.

    2. A mini alarm to carry with you in case of emergencies, because you can never be too prepared. When activated, it'll emit a high-pitch sound to deter and confuse an attacker, giving you more time to react and get away safely.

    It can be used by all ages and is great for alerting those around you that you may be in danger. It's also small enough to be attached to your backpack, handbag, or keys. Plus, it includes a flashlight!

    Promising review: "Wow! This is really loud! I am happy with this purchase, but hope to never have to actually use the alarm since it's very loud. No attacker or purse snatcher wants any attention drawn to him or her. The ear-piercing sound this device makes would be unwanted attention. It's very lightweight and can be carried in one hand." —Alijah R.

    Get it from Amazon for $5.99.

    3. Or a three-in-one pepper spray with an emergency alarm and strobe light for ultimate protection. It's point-and-shoot and can spray up to 10 feet in front of you.

    The Grommet

    The alarm and light are activated once you start spraying, plus the battery lasts up to four years. FYI, due to state-specific laws, it can't ship to New York, Massachusetts, or Washington D.C.

    Get it from The Grommet for $29.95 (available in two colors).

    4. A portable, smokeless fire pit that you'll use constantly this summer for family and friend gatherings. It's rechargeable, less than 20 pounds, and can be controlled via an app on your phone.

    Uncommon Goods

    It takes standard logs and can be used to roast food, too (hello, s'mores). The legs fold in and the solar panel means you'll never really run out of juice.

    Get it from Uncommon Goods for $200 (accessories available for add-on).

    5. A hands-free ice pack for kids (or adults) to treat injuries without getting in the way. The Velcro strap means they can keep on playing without missing a beat.


    It can be used for fevers, on pets, or whenever the next incident occurs. AKA, ditch that old bag of peas.

    Promising review: "Simple, but amazing idea and mandatory item for any parent of active toddlers or kids. The Velcro band is perfect for heads, arms, and legs. Fabric is soft and comfortable on the skin even with the cold temperature. Most importantly, the kids love wearing it." —Timothy J Britten

    Get it from Amazon for $14.99 (available in three styles).

    6. A document clip so you can keep your most important papers in view while you work. It'll mount onto your monitor, freeing up your desk space. It also means you no longer have to crane your neck in a weird position!


    Promising review: "I have one of these on each side of my dual monitors, for quick references as well as when I need to type something directly. Mostly, I use them for cheat sheets and other quick references. They hold easily, and are easily moved around to change angle and distance. One thing I did not realize when I bought these was how far forward and back they can swing, to make the material the same distance from your eyes as the text on the monitors. This prevents eye-strain for me, as I'm not having to constantly change focus." —Brian Groover

    Get it from Amazon for $7.69.

    7. A pair of polarized, floatable sunglasses you'll actually feel comfortable taking into the ocean with you on your next beach trip. You won't have to worry about them sinking when you're bobbing in the waves.

    They're shatterproof, anti-scratch, and anti-glare. Plus they're coated so water will slip right off.

    Promising review: "Scoooore on these sunnies! I spend a fair bit of time at the lake, so found Rheos sunglasses because I'm a klutz. I fell in love with this brand not only because they float (which has saved me more than once), but also because they're so lightweight! It's SO hard to find cool looking polarized glasses, especially in a lens color that isn't ridiculously shiny and weird. Clear visibility and without that weird over-polarized feeling that some cheaper sunglasses have." —Meggan

    Get them from Amazon for $55 (available in five styles).

    8. A ladder stabilizer so you never have to worry about a wobbly ascent or descent. It's got stakes for grass, snow, or gravel and non-slip rubber grips for hardwood, concrete, or tile.

    The Grommet

    Promising review: "I purchased this as a gift for my aging husband who insists he can still safely do household tasks outside requiring a ladder, despite my admonition! He loves this device! And I feel less anxious when he uses it. It is heavy metal and very sturdy and easy to install." —sarah

    Get it from The Grommet for $54.95.

    9. A pack of light-dimming covers for those LED lights on electronics and appliances that are always weirdly bright and distracting at night. They're peel-and-stick, so you can match the size of whatever light you're trying to cover.


    They wont leave sticky residue behind, either!

    Promising review: "These are great. I have a hard time sleeping with lights on in the room and so many devices recently have incredibly bright LEDs. I did notice that some lights require more than one sticker to dim them to my desired level, but this is really an advantage as you could adjust the level of brightness by the number of stickers you place over it." —Matthew M Phelps

    Get them from Amazon for $4.49.

    10. Gash guards for your bed frame to prevent you from cutting yourself or your sheets on that incredibly sharp metal frame you always seem to knock into.


    Promising review: "I don't know when bed frames stopped coming with this protection at the ends of those pieces of angle iron the frame is made of, but it's great to have these guards available. They slipped right on, fit snugly, and will definitely protect the box spring from being cut, as well as our skin. Good purchase." —Illinoiswordgirl

    Get two from Amazon for $9.87 (available in three sizes).

    11. A blow dryer holder so you can angle the dryer in the perfect position. Now you actually style your hair with ease, instead of awkwardly fumbling with your brush.


    The actual stand is universal, so it will hold dryers of all sizes and weights.

    Promising review: "I LOVE this hair dryer holder. It used to take me 15-20 minutes to dry my hair in the morning. Now it takes me eight because I don't have to put my arms down to rest them anymore. I placed it high on my bathroom wall and tilted the arm down because I wanted to straighten my wavy hair. My hair was sleek and straight because I brushed it while drying, which was so much easier to do without holding the dryer. I'll tell all my friends about this!" —Jon Wagner

    Get it from Amazon for $26.99.

    12. Pinch guards that can be added to every door in your home to prevent accidents with children and door-slamming. It's made of foam, so it's super easy to slip onto the doorframe (and adjust its position).


    Promising review: "These are fantastic, my 18-month-old has a current obsession with closing all the doors in our house. They absorb the force of her slamming the door without bouncing back and hitting her. It's one less thing I have to worry about, and as a mother trying to keep up with a toddler that doesn't stop moving/running, I appreciate all of the help I can get! Great product." —melissa

    Get four from Amazon for $9.75.

    13. A bottle of Bio-Oil, because it's literally magic and can treat dark marks, acne scars, dry skin, uneven skin tone, etc. It's light, non-greasy, and made from a combination of plant extracts, vitamins, and PurCellin oil.

    Urban Outfitters

    I own this oil and am seriously amazed by its capabilities. It can soften up dry spots overnight, lighten up acne scars, and clear breakouts. You can apply it under makeup (after washing your face), and it won't make your skin greasy.

    Promising review: "I use to have horrible acne scars and would feel the need to constantly wear makeup to cover them. Eventually tried this and they slowly started fading over time; I love this product. Also has a lovely smell and feel!" —jackiebc

    Get it from Urban Outfitters for $12.

    14. A laundry guard, because having socks slip behind, never to be seen again is a heartbreaking thing. It's magnetic, so it will attach onto metal units.


    It's compatible with both top- or front-loading machines!

    Promising review: "Oh, how I love this laundry guard! I have very little counter space in my laundry room and this allows me to use all that space on top of the washer and dryer for folding clothes. No more fishing socks and underwear from behind the machines! I love it and so does everyone else that visits and sees it for the first time. The magnets hold it in place very well. There is not a lot of shifting unless I throw something large and heavy up there but it's an easy adjustment to get it back in place. Good quality, not flimsy at all. I highly recommend this product." —Christa

    Get it from Amazon for $29.95.

    15. Razor nick sticks that'll treat cuts from shaving. All you've got to do is break the stick, wet it, and dab it on the cut. It's simple!


    One reviewer even said it helped them treat a canker sore!

    Promising review: "These are perfect. They actually stop bleeding nicks and the germaphobe in me LOVES that they are single-use. They come in a matchbook package – just tear one stick out, apply it to the nick and ta-da! No more toilet paper stuck on my legs because I rushed shaving." —Miss E

    Get three packs from Amazon for $7.99.

    16. LED BBQ lights so you can grill at any time of night without running the risk of burning your food. They're magnetic, so they'll attach on to your hood.


    They're weather- and heat-proof, so no, they won't melt!

    Promising review: "Pretty slick little lights. One light is sufficient for your average-sized grill so it's just a bonus that you get two. Very bright. Magnetic base is great as it stays where you put it. Flexible necks are good for pointing light where you need it. Not sure on battery life yet but it does come with batteries and a nice little carrying case for camping or other such adventures. Can really use these anywhere you need light. Very multi-purpose. Good purchase." —Adam G.

    Get two from Amazon for $14.99.

    17. And a propane tank scale that'll give you a heads up when you're running low. Running out mid-grill session is the absolute worst.


    Promising review: "Worked really well! I bought it and tested my tank with it and it was basically on E, so I took it to Ace Hardware and had them fill it up for me. They told me they fill to 20 lb. for those tanks. I brought it home and lifted it and it was all the way on FULL. So, this appears to work really well! The directions that come with it say if you are doing the tank exchange program (like at your grocery store, etc.) they only fill to 15 lb. and so it will read 3/4 full (the 15 lb. mark.)" —IAMRAMEKIN

    Get it from Amazon for $14.99.

    18. A Billie razor (and refill subscription) so you can end the shaving nightmare of missed hairs, small cuts, and uncomfortable razor burn. When you sign up, you'll receive a *incredibly pretty* razor, two blade cartridges, and a magnetic holder.

    Kayla Suazo / BuzzFeed, Natalie Brown / BuzzFeed

    Billie also offers add-on lotions and creams (all made without parabens, sulfates, and fragrances). You can subscribe to receive future blade replacements, too, so you never have to use gross, overused blades on your sensitive skin. Oh, and it's all really freaking affordable.

    Promising review: "I have VERY sensitive skin. As in, I so much as LOOK at a dull blade and suddenly I'm on a one-way trip to little red bumps. Until Billie, I had kind of just accepted that my bikini line was never going to be ~perfectly smooth~ no matter what. And yet! When I started shaving with these razors, I immediately noticed how comfortable the whole experience was. I'll be honest and say I rarely use shaving cream (very responsible for someone with sensitive skin!) and it doesn't even MATTER. The blades never nick me and I've actually seen fewer and fewer bumps, even in my ~most sensitive~ areas. I credit its charcoal shave soap that encases the five (!!!) blades so if you 'forget' cream, you'll still get super smooth results. I'm pretty confident in saying if a total klutz like me has yet to do damage with these bb's, than everyone can benefit from these." —Emma McAnaw

    Sign up for the starter kit from Billie for $9 (available in five colors).

    And real our full review of the Billie razor and subscription here.

    19. A migraine relief stick for anyone who has experienced the pain of a really, really bad headache. It has a mixture of peppermint, spearmint, and lavender essential oils to relieve tension when that afternoon migraine hits.

    Katy Herman / BuzzFeed

    This migraine stick is super easy to use! Just roll it on the back on your neck, forehead, and temples for some relief from the most annoying head pain. And don't worry about residue, the stick rolls on clear and won't leave a greasy shine.

    Promising review: "I have noticed throughout my work day I will begin to get the dreaded afternoon headache. This migraine stick is my new go-to. The second I feel a headache coming on, I just roll this on and within seconds I feel it working. Within a minute or so I feel fine again. I have also noticed it give a little boost of energy as well. I have also used it when I feel a full blown migraine coming on. All I can say is it really works. In addition to taking the pain away, it also provides a tingly sensation. Wherever you roll it on tingles after application.

    I have also noticed that even if I use it often, it keeps working. You don’t grow a tolerance to it." —Corinne Beck

    Get it from Amazon for $10.99.

    Check out our full review of the migraine relief stick.

    20. A seat gap filler to keep change, credit cards, rings, and French fries from plummeting into the black hole that exists between your seat and the center console.

    Breath a sigh of relief, these gap fillers stay firmly in place and surround the seatbelt catch so no area is left exposed.

    Promising review: "Traveling a lot with kids means they sometimes drop a French fry down the seat. Dropping a multitude of things is inevitable, frustrating, and a bit gross. These are sort of a mushy, resilient gel foam with a neoprene cover. They fill the entire seat gap so that nothing can fall down the crack, absolutely nothing. The dark black color means that once they're installed you just never notice them, and they stay in place with seat movement. You can pop them out in two seconds if you have to. Honestly, I can't imagine a better design." —DrBobMichigan

    Get it from Amazon for $19.99.

    21. Arch support sleeves that may help heel and arch pain, improve posture and circulation, and decrease swelling. They won't restrict your movements, and can be worn like socks directly over your skin.


    Promising review: "These have been great at relieving the pain of my plantar fasciitis almost immediately and completely. I was afraid that nothing would help, having read on the internet so many stories of people living with the pain, but decided to give these a try due to good reviews and the low cost. Needless to say, it was a good decision. The copper compression bands are easy to put on and should fit almost any foot size, being stretchy. I have been using mine for about a month with no discernible breakdown in the elastic. I do wear them all day under my socks and take them off to air out at night. This works for me and I haven't had any foot pain in the night as I was having before using the compression bands." —Mark Mumma

    Get two from Amazon for $13.95 (available in two styles).

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    The reviews for this post have been edited for length and/or clarity.