With all the electronic equipment, computers, and gadgets it's is very easy to get lost in that great bunch of cables that are hiding behind your table, or spanning across the room in the worst case.
If you haven't planned cabling of your house from the beginning and you got some serious amount of equipment lately you're in big trouble if you try to detangle the cables.
If you don't wish to spend a whole fortune on this head over to
lifehacker and check out their wonderful article on cables, cable organization, detangling, and all related to the topic.