My sister gave me a set of Tupperware FridgeSmart containers. They are rectangular and stackable. They have holes on one end that you can plug or leave open in order to create the best climate for your fruits and vegetables. I cut up a seedless watermelon and put it in the biggest container, plugs in. It fits very nicely. It also seems to make the food invisible. I keep overlooking it. Fortunately, the melon is staying fresh.