Speaking of cars and charging, if you need the ability to charge multiple devices while driving but don't need a whole jump starter to get the job done, the Anker PowerDrive 2 is where it's at.

Made by the same folks as our favorite 5-port USB hub, the PowerDrive 2 offers two USB ports for charging a couple iPhones, an iPhone and an iPad, or even two iPads simultaneously, and at full speed. It outputs 4.8 amps for a single port, or 2.4 amps each when they're being used together. I've had some crappy dual-USB car chargers in my time, and this one leaves them all in the dust.

Get it for $8 on Amazon.