Last weekend I put plastic on the windows and blankets over the plastic on bedroom windows and rooms we don't use. I shut off the rooms we don't use. I have outlet insulation already installed. Not much more I can do to keep it warm in here that I can find. I heat with wood when I'm home so my furnace only runs at nigh at to keep it above freezing when no one is home. I'm always looking for new suggestions to keep warm as I can't afford LP or any more electricity. Has anyone tried to hang the barrier insulation (silver stuff) in or on their walls. I've heard it works great in attics but what about walls?