How awesome are coupons that help us save money in multiple ways…both on the product itself, and on our heating bills. There is a new $3 3M Window Insulator Kit Coupon that was just released over on Coupons.com this afternoon, that can do just that!
It looks like this coupon can be used on either the indoor or outdoor kits, so we have some options with this one! Have you ever tried these kits? If so, what do you think?