Insulated Garage Door

Spent a few hours insulating my garage doors with a reflective bubble sheet material. Came in a big roll that I cut to size for each garage door panel and attached with spray contact cement. The material only has an R-value of 3 which isn't much but better then nothing. It was pretty easy to install, looks good, enhances garage lighting due to its reflective qualities, and at $100 wasn't too expensive. It also seems to add some soundproofing to the house.