As someone who actually has at least five lipsticks in their purse/tote at any given moment, I can attest that adding a similar-sized charger to the mix would be *much more* efficient, lol. This lil' charger can add over one charge to the iPhone 8 or at least 80% to the Galaxy S8 and other popular smartphones.
Promising review: "I absolutely trust this charger. With a surplus of portable chargers on the market, it's difficult to identify and separate the good from the junk. I've tried over eight different ones and can't say enough about this extremely reliable, user friendly, and ergonomically distinct product that can fit in your pocket. Of course, it's not going to pack the punch of a big bulky charger but that's not the point of this little guy and even given the small size, it can't be beat. I would argue it's an absolute necessity in this era where phone utilization/battery drainage is a daily occurrence. Also, I'd recommend purchasing some 6-12 inch cables, so you don't have to carry around a three feet long charger cable with your 4 inch charger." —Braxton Aldrich
Get it from Amazon for $19.99+ (available in four colors).
If you can spare an extra $11 or so, this also-compact Anker portable charger provides a whopping 3.5 charges to an iPhone 8 and 2.5 charges to an Galaxy S8 — and if you're like me and still have an iPhone 6, then it goes up a charge. I own this baby, and it's LIFE-CHANGING (my phone lasts like two hours with consistent use, like when I'm traveling *screams*).
And check out our picks for best portable chargers on BuzzFeed Reviews!