The area under our desk is a prime fire zone seeing since the wires and power strips are all tied in the biggest knot this side of Gordium. That's fine hidden under a desk, but awful in the living room or somewhere that actual people can see. Voila, the Black Box Cord organizer from KangaRooM. It's a
plastic heat resistant acrylic box with sliding doors and five ventilation strips that goes over your power strip, both neatly arranging your plugs and suspending stuff like AC bricks and small routers so they don't get tangled up.
The Black Box is a bit pricey at $60, so unless you're really anal, it's probably better just to handle your cord situation yourself.
Black Box Cord Organizer [Kangaroom Storage]