Did you know, you can use common bubble wrap as insulation for windows? I had heard of this bubble wrap trick to save energy before, but had never actually gotten around to trying it. Not for every window, but just an idea to consider.
Mobile home. On the road, it measures m by m, and once it has arrived at its destination its floorspace can be increased threefold in a matter of seconds. "De Markies" was awarded the Public Prize at the Rotterdam Design Prize
How To Make Your Own Energy-Saving Thermal Curtains
Room has some air leak problem so this would be a good idea for the window curtains. It will help block light in the morning as well. Make Your Own Energy Saving Thermal Curtains HOMESTEAD SURVIVAL SHTF disaster preparedness
Cheap Waste Tank Cleaner Rather than buy nasty and expensive chemicals for the waste tanks try using a cup of Borax detergent and cup of Calgon Water Softener. The Borax helps control odor and the water softener prevents waste from sticking to the wall