I use 3/4" thick plywood (4' X 8') cut in half the long way making it 2' X 8" and place it on various items. I have two Sauder tables that I use and then behind the sofa in den I stack tubs in sets of two, each set spaced at appropriate distance, place a 2X8 plywood on them and cover with fabric and clear plastic for a work surface to set together puzzles or place a sewing machine or whatever. BTW, the tubs hold fabric or quilt projects, batting. I am a believer in using what you have, when possible.