Sometimes, we admit that setting up a media center can make you feel like Goldilocks. There's not much we can do about too-short cords. But those too-long ones? Try this simple hack with a children's closet hanger. It will work great to keep a long cord under wraps behind your TV cabinet.
For short, thin cords that need to catch up a little slack, try wrapping it up inside a plastic bulb or using your Wolverine action figure (really, somebody did it!).
But if you've got a 30-foot RCA cable on your hands like Lifehacker reader Dan Arrigo did, this cheap hack with a plastic hanger works like a charm and is super easy to make:
Find yourself a plastic pants hanger and cut the hook off. Wrap one end around one of the clips a few times (in case you'll need just a few inches of slack) then wrap it up along the hanger. When you get to the end, wrap it once around the hook to anchor your progress and go back the way you came. Repeat until clutter free. Success!
If you're looking for something more permanent, try to DIY a short cable like this Flickr user.