The most complete cord management kit is $26 Tokye Cable Management kit. It comes with multiple ways to eliminate cord mess. These include a massive cable management box, color coded Velcro cable ties, cable clips and a large cable sleeve.
Another way to bundle up multiple cords together is with the Kootek 118-inch Cable Management Sleeve. The product costs $12 through Amazon, and uses Velcro to stay tight. You can also cut it to fit the length you'd like.