Wireless accessories, such as Apple's wireless keyboard and magic trackpad, are all well and good until they run out of juice. Then they become decidedly less wireless. Not so with Mobee's Magic Bar, which lets you recharge without wires.
This little charger slides right onto the back of your keyboard, giving it the juice it needs. You can charge it up separately when it isn't needed via USB. So sure, it still uses wires, but in a decidedly less intrusive way. Just take what you can get, OK?