It has weather widgets for where I live and close relatives and multiple stickies that hold to-do lists and things I want to be sure to remember. So it's kind of filled with stickies. My work desktop is also filled with stickies.
Pretty tidy. A few folders and shortcuts (computer, user folder, software, games, links, recycle bin) and a nice wallpaper. Sometimes a few more temporary shortcuts (that serve to annoy my OCD so I'll take care of that job just to clean up and remove them).
I have about 10 icons for program-related stuff, and the rest (12) are various folders and files of my writing and homework that I like to keep accessible. They're divided to either side of the screen with a wallpaper of downtown Kansas City that I photographed about ten years back.