A user on the Hacked Gadgets Forum posted this simple conversion of a common wall-wart into a USB power supply/device charger. He used the power adapter from an old Iomega drive and a few common components. I’ve seen several versions of these floating around. Easy to make. Nice to have around.
DIY Wall-Wart USB Power Supply – Link
This was actually posted in the teamhackaday.com forums three days prior to the Hacked Gadgets forum post.