Using Lidless Containers

I poured a can of pineapple into a plastic tub and realized I didn't have a lid. Then I went to get one with a lid, and found out it didn't have one either.

But, by putting the larger one over the smaller, this happens. The liquid makes a seal and you can press them together and flip them. Then the little one is inside the larger one, and the seal keeps it fresh. N=JOY!!