I used a wireless mouse for several months, until the batteries ran out unexpectedly. I then had to resort to my laptop's touchpad, which just about drove me crazy. I switched to a wired mouse, but always missed the wireless one.

Well, now I can have my wireless mouse and not worry about the battery life. Thanks to the Battery Free Wireless Mouse, all the power for the mouse comes straight from the mousemat. This mat connects to the PC via USB, and works as a conductor.

I'm surprised someone didn't invent this before, but I say that about a lot of gadgets. If you like, it can be purchased at Gizoo for about $25 USD.

Via Coolest Gadgets