Jerry: What are you looking for?
Kramer: Tupperware.
Jerry: Sorry. I don't have any Tupperware.
Kramer: I knew this was going to happen. I just made a delicious casserole, but now it won't keep because
I have no Tupperware.
Jerry: What about a plastic bag?
Kramer: You must be kidding.
Jerry: What is the difference?
Kramer: The patented burp, Jerry. It locks in freshness.