Do you expect substitutes to go through your desk? I've found that most of the teachers I sub for don't leave a note about where needed forms are because they assume I'll just open up their desk drawers and find them myself. When I first began subbing, I even had a few teachers say to me "It was in my desk. Didn't you look there," if I later mentioned that I couldn't find a lunch or attendance form. I eventually decided I would open the top middle drawer (where pens and pencils are usually kept) to look for forms, but no other. Even that has led to teacher's being surprised because I didn't find forms they kept in their big side drawers.