There are so many wires on my little desk, MP3 player, external HDD, USB mouse, etc, their wires make my desk a huge mess. Did you have that question too?
Cordie might be a useful gadget keeping your desk clear. It’s an on-your-desk cable management system that can gather assorted wires on desk, and keep them not to slide off desk. Cordie measures 3.5-inch wide, and has three individual loop spaces allowing you to put the any cables into the spaces such as USB cords, power wires, phone wires, headphones, etc. The functional gadget is made of flexible rubber in order to grab the wires stoutly. 
Cordie is available in various colors, including pink, blue, green and grey. Each of them is priced at $12.99 USD. You can grab one from Quirky.