I put together a system of shelves (it was actually called a "mail box") for my wife's classroom this afternoon. I couldn't help but marvel at how many hundreds of dollars of ours is in her room. Furniture, flip charts, pocket charts, shelves, trays, plastic tubs and other assorted containers. That's not even including the school supplies we augment. I firmly believe she works for minimum wage with all the money we put back into her classroom every year.