Not much, honestly! My "desk" is actually a really shallow IKEA shelf - for a while I had a small collection of game figurines, bobbleheads and snowglobes lined up next to and on the base of my monitor stand, but more recently I had to make room for a Raspberry Pi, emergency bottle of HP Sauce and a drinks coaster.

My desk is tiny. Also I'm almost out of HP Sauce, please send help.