Well I had been looking for a way to store my son's large wooden puzzles with handles etc. They have a few on the market but they don't have ones big enough for some of his jumbo puzzles. My mom suggested using boxes and I remembered having extra FedEx boxes at the office that we don't use b/c we switched shipping companies. I used my new cold heat cordless glue gun (dh gave me for my birthday) to glue the boxes together. I folded the flaps inside the box to give it more structure. Here is how his puzzle shelf turned out I'm soo please and it fits all the puzzles just right:
