Not impressed with Real Simple's sock tip to gather your cords? I know what you mean, because if you have to see the cords, you don't also want to see an old partnerless tube sock.
The Cable Box ($30) comes in handy because if the part of my cords I want organized is visible and even gathered in those little tubes, I'm not happy. The Cable Box gathers them up, including the power strip, and holds them in an inconspicuous box. It's available in black or white, so you can match it with your other gadgets.
Honestly, I wasn't as impressed until I saw the before and after shot of the Cable Box in action. To see it, just read more.