M.G.
I have to disagree with Kate. Our home was built in '04, and our insulation is very poor. We're actually looking at doing something else. I did hear someone mention an inexpensive Triple Insulation roll, but I don't know where you get it or how much it costs. it's worth asking around, though. I also heard someone who put an insulation panel on their garage door for $30. We're looking into that one right now. They said it made a huge difference.