The Signum cable management rack from Ikea is the best thing ever. I finally got around to installing it and rerouting most of the wiring around my desk. No more dangly cables everywhere, huzzah! I need to do a better job of sorting out cables and tying off slack.
It would be nice to route some of the power cables near the wall socket around my desk leg so that they remain hidden. Unfortunately though, a few are short. I might try to prop and tie the power strip to the rack. Not sure if the giganormous power bricks will fit though. I Also bought a drawer unit to store all of my stupid USB cables, device chargers, guitar cables, PlayStation controllers, adapters, etc and any miscellaneous junk laying on the floor.