Order enough supplies over time and, of course, you'll be getting a quarterly supply catalog from every early childhood supplier that exists. I hate the thought of all that good colored ink and paper going to waste. So it gets thrown onto the art shelf along with scrap paper, glue, and scissors. It's always a popular item.
Nicely enough, I hear "Ms. R, we have these in our room!!" much more than I hear, "Can we get these???" or "I want! I want!" (Though there is plenty in those catalogs that we don't have!) Luckily, they don't seem to equate me to having any buying power.