If you have a busy and crowded desktop, Fences would be the ideal application for you. The program helps you arrange the icons into categories so you do not have to look for the most used icons too long and also hide the rarely used icons from the desktop.
This way you will keep your desktop clean and organized. An unlimited number of fences can be created on the desktop, the items can be hidden with a single double click and the fences can be customized to better manage them.
Fences is a nice app but keep in mind that it can also drain quite a lot of system resources. So don't install it on some ancient rig.