"Good fences make good neighbors," Robert Frost famously wrote--and this program shows that they make good desktops, too. Fences does exactly what it says: It fences off parts of your desktop and devotes them to certain things, such as applications, Web links, folders, recent items, files and documents, and more. That way, instead of having to search through your disorganized desktop for an item, you just go to the appropriate fenced area and find it immediately there.
You can customize Fences to create your own categories, and you can place any objects inside the fences you want. You can also control the number of fences and where they're located, as well as customize the fences' transparency, brightness, and colors. And a very nice feature lets you dismiss or restore all of your icons with a double-click on the desktop.
Unlike with 3D desktops, with Fences your PC won't suffer slowdown. Though Fences is not quite as nifty-looking as 3D desktops are, it makes organizing your desktop easy, without any detrimental effect on performance. Given that it's free, it's well worth the download.