The insulation you are looking for in the Home Depot stores is located in the window and door section. It comes in rolls - silver on one side and bubble wrap on the other. Make sure and get the adhesive also while your are there. Its cheap.

"Drugs are money, money is power, power is security." - Kent Heiner
Nedrow population 2212
Carbon footprint family of 2/11 tonnes of CO2/yr