Several years ago, I purchased a chest type freezer. My best friend came over to see it. She said, "My dad told me how you can tell if you have a tight seal on your freezer. If you put a dollar bill in between the top of the freezer and the bottom of the freezer and you can't pull it out, then you have a good seal."
"Wow, let's try it!" I said.
"Sorry, we can't," she began. "All I have is a ten."