I was shopping the memorial day sale for a cooler to use for a coolidor. I had one all picked out and went to find he wife. She was in the pet aisle and I found an air tight pet food storage container for half the price and roughly the same size. Now this stands vertical. The problem I am having is stacking or shelving. It has a top open lid. I could just stack boxes inside but he air flow would be lacking. Any suggestions?