As in: The rat’s nest of wires under your desk.
Bundle cords with Velcro tape. There are plenty of cord organizers on the market, but Carrick Rowe, an interior designer in New York City, suggests using Velcro tape ($5 for a 15-foot roll, textol.com). “I’ve screwed a small hook into the bottom of a desk and hung bundled wires up and out of the sight line,” she says.
Use a cardboard tube. You can make your own cable corraller out of the cardboard tube from a roll of paper towels: Using scissors, slice the roll down one side, then wrap the tubing around the wires to keep them neat.