After I'm done putting my weekly drawing away and getting my photos set up for the next week, I clean off my workspace (my teeny tiny workspace) and do a new set up. Here are the basic tools of my trade....

Blending tools - tortillons, pointy Q tips, blunt Q tips, kleenex.
Erasers: plain eraser, soft art eraser, and mechanical eraser. I don't know what I'll do when my eraser gets spent up, because its my favorite and I have absolutely no clue where I bought it from or where to get another one!
Sharpener: I sure wish I could find a type of sharpener that lasts longer. This is technically only good for a few pictures, then I have to buy another one. But they are cheap, so its not a big deal.