Aukey Car Charger | $7 | Amazon | Promo code AUKEYCS1
Graphic: Shep McAllister

This car charger is one of our top selling products of all time, and it’s easy to understand why. It’s cheap (just $7 today with code AUKEYCS1), it’s tiny, and it can charge two devices at 2.4A simultaneously, which is important when your phone is also playing music and giving you turn-by-turn directions.