When you drain your car battery by pulling a bonehead move like leaving your headlights on overnight, its always a huge pain to get it going again. You need to get jumper cables, find someone else willing to give you a jump, open your hoods, and get yourselves wired together. It's a process, one no one likes.

This Porta-Jump is a small device that can make the whole jumping your car thing a whole lot easier. All you need to do is plug it into your cigarette lighter, wait for the green light to turn on, and you're good to go. It'll then recharge itself in about a half hour while plugged into your lighter. For a mere $20, it seems like one of those things most car owners could use in their glove compartment.

Book of Joe, via Coolest Gadgets