For me, I went on the Adventure Time art blog and saved a bunch of the backgrounds they posted, and put them all in a folder and set them as a slideshow for my desktop. NOW ITS LIKE I'M FREAKING TAKING A TOUR THROUGH THE LAND OF OOO 24/7.
as for actual icons, I keep most of them on my taskbar at the bottom so they don't get all cluttered up on the actual desktop.



















