Apple's white power brick is pretty handy, what with the attached hooks for coiling it up and packing it away. If you do it wrong, though, you'll likely stress the cord and break it (or worse, create a fire hazard).
Technology blog Tested shows us how to wrap the cord correctly. Instead of just coiling it up, make a loop so the joint between the brick and the wire isn't bent. It's simple, but really good information to know — I know I see people with exposed wires on their power bricks all the time, and have had one break myself from improper use. So check out the video to see a demonstration and share your power cord longevity tricks in the comments.