I've thrown away the original message, so I don't know which list the questions were on, but Real Goods has what is called a "Low E Window Film" in 48, 36, and 24 inch widths, 15-foot rolls. It's supposed to last 15 years. Go to http://www.realgoods.com, click on "Energy Efficient Living" and then scroll down to the window film. Happy Trails - Sherry '63 Bambi, WBCCI 1104, VAC, WDCU
