1. Use a can opener to open sealed plastic packaging. This tip would have saved me approximately 22.8 hours of my life. 2. Add saline solution to refresh dried-out mascara. passionforsavings.com Just a couple of drops will do. 3. Use a toilet seat cover to blot the oil from a greasy face. 4. Use pretty wine corks to make planters for tiny succulents. everafterblueprint.com Put magnets on them and hang them on your fridge. Instructions here. 5. Amplify the volume of your iPhone or iPod by placing it in a bowl. realsimple.com 6. Use paper hole reinforcements to give yourself a half-moon manicure. s3.amazonaws.com 7. Use a banana to fix a DVD. 8. Use Jello as a lipstain. pics.livejournal.com Directions: Pour the powder mix into a bowl and moisten a Q-Tip with water. Then, being very careful not to use your fingers since the red stains stay put, dip the Q-Tip into the powder and apply it directly to your lips. 9. Use diluted fabric softener as a leave-in hair conditioner. dizzysplayhouse.com 10. Use a lint roller to clean out the debris in your handbag. realsimple.com I am the queen of cookie crumbs in my handbag. 11. Use nonstick spray on the inside of your votive holders. realsimple.com When the candle has burned out, the remaining wax will just slip out. 12. Eat marshmallows to soothe a sore throat. 7thhouseontheleft.com There's a scientific explanation behind this.(You can also use marshmallows to separate your toes during a home pedicure.) 13. Use newspaper as an odor absorber. realsimple.com You can put it in Tupperware, or the crisper bin of your fridge, or in a purse with any lingering leather smells. 14. Use aspirin to turn hair made green by chlorine back to its natural color. www2.pictures.zimbio.com Dissolve six to eight aspirin pills in a glass of warm water, coat hair with the solution, let it sit for 10 to 15 minutes, then rinse. 15. Use a sock to create a big perfect hair bun. View this video on YouTube youtube.com 16. Use a spoon to open a sealed-tight jar. images.teamsugar.com Read more detailed instructions here. 17. Use a rubber band for perfect French tips. 18. Hang a picture using a pop tab. blog.makezine.com The pop tab is surprisingly sturdy. 19. Use VapoRub to train your pets. wordpress.com Apply VapoRub on things you don't want chewed up or peed on by your cat or dog — they're turned off by the taste and smell. It also supposedly cures toenail fungus. 20. Use mayonnaise to erase water stains from wooden furniture. charlesandhudson.com 21. Use fabric softener and vinegar in a spray bottle to release wrinkles from clothing. 22. Use a cereal container as a trash disposal in your car. i.imgur.com 23. Add a few drops of vodka and a teaspoon of sugar to make cut flowers last longer. thedailygreen.com 24. Use Alka-Seltzer to clean your toilet. blogcdn.com Drop a couple tablets in, wait 20 minutes. The citric acid will dissolve the grime. 25. Use hand sanitizer to dissolve ink stains. onegoodthingbyjillee.com 26. Use (unscented) dental floss to cut soft cheeses and cakes. hecooksshewines.com 27. Pack your shoes in a shower cap to keep the soles from touching your clothes. realsimple.com 28. Use raw spaghetti strands to light hard-to-reach candle wicks. realsimple.com 29. Use Earl Grey teabags to get rid of a sunburn. instructables.com Read the directions here. 30. Use mustard to suck the pain out of a burn. instructables.com But also, don't put your hand on a boiling kettle. 31. Rub the cut edge of cheese with some butter to keep it from getting moldy. instructables.com 32. Use Scotch tape or nail polish to relieve an insect bite. thaimedicalnews.com Blocking oxygen from getting into the bite will stop the itching. 33. Use a blow-dryer on a mirror to clear the steam after a hot shower. 34. Throw baking soda on a burgeoning grease fire. It works much like a powder fire extinguisher. But don't use water, baking powder or flour, as it's likely to make the fire even bigger. 35. Open a bottle of wine using your shoe. View this video on YouTube youtube.com Maybe the most useful thing anyone needs to know, ever.