17. Never run out of juice for your iPhone

I was super jealous when someone whipped out this cool little gadget. It's an iPhone case that's also an extra battery. The case battery holds an extra charge and you charge it together with your iPhone in it. You get twice as much battery power in one neat little package. I'm totally getting one if I get a new iPhone.

Audience: Anyone with an iPhone.
Benefits: Practical for those hard to shop ahem men in your life.