Outlets and light switches in the walls that separate your home from the outdoors are often overlooked sources of heating or cooling loss. Insulating these areas using foam gaskets - little, inexpensive foam pads made to fill the gap behind the switch cover - can help reduce drafts.
You can save up to $10 per year when you insulate five outlets.
To see how it's done, check out Dave's DIY video below.
How to insulate outlets and light switches
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