Is the area under your desk a tangled mess of cords? Feeding them through a storage bucket can keep your cables out of sight.
All you'll need for this trick is a plastic storage container. Pretty much any shape or size will work, as long as it has a lid. Just cut a hole or two in the sides, and feed all of your cables through, leaving any power supplies, surge protectors, and excess cable length in the bucket.
We've shared some better cable management tricks over the years, such as using a rain gutter, but none are as easy to set up as a bucket. It won't necessarily save you any space, but it will eliminate some of visual clutter underneath your desk or entertainment centre.
Computer Cable Management [Five Gallon Ideas]