Let's see if we can make a list of 100 favorite Organizing Tips..
Cable and Cord Tamer.
I don't know of anyone that doesn't have this problem somewhere in there home. The way I keep them in check is to use a shower curtain rod cover. They don't cost a lot and come in decorative colors. With the slit along the whole length it's very easy to cover a number of cords/cables. Just lay that against the wall and there you go! Neat and tidy cords.
Here is a link that might be useful: Shower Rod Covers