I have begun to remodel the small room downstairs that has served as an office/junk room since we moved in. Since we need another room for another baby, we're turning it into a guest bedroom. It's small, but serviceable. I've been pulling down the ugly ceiling tiles and ugly paneling so I can put up drywall, and today a work crew was here to install two new double hung replacement windows to replace the drafty old ones with the crappy cranks. I sealed up the sides with caulk and great stuff and you can already notice a difference in the room. It's still not really warm, but at least it isn't freezing any more.