Here’s a rather cool DIY involving transforming your AC wall outlet into a USB outlet charger! This involves buying 2 USB AC chargers and modifying your wall-outlet to fit the chargers inside your wall. (Also see these USB AC chargers, super cheap at less than a dollar!)
Of course, if you want to save yourself the trouble of making of these, you can always get the USB AC Wall Charger which comes included with 3 AC inlets and 2 USB ports.
This instructable will show you how to convert a standard outlet into an inwall USB Charger. In about 30 minutes and for under $10.00.
Not only will this add a permanent place to charge your USB devices. It will get your home ready for the future, when most appliances are USB. (I make no guarantees this will happen)