Clutter is a small Mac OS X application that lets you put music CDs on your desktop. You can drag them anywhere -- they're really windows. Line them up neatly or put them in piles, it's your choice. Each one looks like the real CD's cover, and double-clicking it tells iTunes -- or your SqueezeBox or SoundBridge -- to play that CD.
Think of Clutter as an alternate user interface to your music collection. When deciding what to play next, instead of searching through a huge alphabetical list, let your eye roam over the covers of your favorite CDs and those you've been listening to recently.