Great success!

I have a rather unusual window in the south wall of my house. It is actually nine windows, each about 26" high and 46" wide set in three rows of three and forming, in effect, one huge window. As I told a contractor giving me an estimate on a modern replacement, it's basically a glass wall.

Unfortunately, it's a single-pane glass wall. To avoid losing huge amounts of heat through it in the winter, I've long made a practice of fitting it with that tape on, shrink with your hair dryer plastic stuff, which works well. Where once I'd have tons of moisture build-up on the glass every morning when I drew the curtains, the panes behind plastic are condensation free.

One little problem is, since I got Max, I couldn't put plastic over the bottom row of panes, since he would no doubt shred such plastic any time a squirrel, other dog, or pedestrian went by. I've known of a solution for a while, but laziness kept me from implementing it. This year, being laid off and looking to save on my heat bills, I finally remedied the problem. I taped on and shrunk the plastic film, then, over the two panes Max would actually have access to (the one behind the couch is safe, I think) I installed 1/8" thick sheets of plexiglass. Those keep Max and his claws at bay, and there is no more morning dew on those panes. I can't really notice a temperature difference, but I'm sure I'm losing less heat, and that means lower bills for me.