We can't keep from using energy completely, but it is important to make sure everything is running as efficiently as possible. Today what we're referring to is your refrigerator.

Always plugged in, it's one of those appliances that you can never shut off. That makes it even more important an item to make sure it is pulling as little electricity as possible.

In order to see if you are letting money flow right out the door of that refrigerator, you'll need to stick some money in that door. Close the fridge on a dollar bill. If the bill is held tight by the door, your seal is intact. If you can easily pull the money out, you need a tighter seal.

According to Money, fixing this can save you $15 a year. We say, the 15 bucks is great, but even better is not to throw all of that precious energy out the door.

Rebecca says: Do the test with a $100 bill and you'll feel like you're saving even more money. And yes, I did the test. And yes, our fridge passed with flying colors!

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