Our house is drafty. We've no plans to insulate the walls and risk ruining our plaster and/or siding, since that's not where most heat loss occurs anyway, and for the time being we can't insulate the attic because the only access to the attic is a 16x22 inch cubbyhole. Try stuffing a roll of fiberglass through that!
Still, it's c-h-i-l-l-y. Plus, those trees that provide such lovely, cooling shade in the summer, provide the same lovely, COOLING shade in the winter! So, the falling leaves signal to us that we need to start winterizing for the cold months ahead.
First, we bring 24 bales of straw to insulate the foundation. This worked like a charm last year; we never had frozen pipes, even though our laundry pipes run through an uninsulated crawl space. The straw also makes a great mulch the following spring. This year, we bought extra bales to insulate The Ladies' coop. I don't know how much they appreciate it, but we figured that if we were going to winterize ourselves, we ought to winterize them as well. After all, they've only got feathers--and each other--to keep them warm!
Straw bales, check. Now for weatherstripping. Last year we did just the rooms that we used, and we closed off the rest of the house. This year, we'll continue closing off the unused parts of the house, but we'll finish the weatherstripping. Then, we'll put up those ugly plastic "storm windows" on every window in the house. Yeah, that's a treat. Next year we are planning to re-replace the horrid 1960s-era aluminum replacement windows with true divided-light double-hung wood windows. Hopefully, we'll do wood storms then as well. But until then, it's plastic all the way, baby!
Last but not least, we'll turn the thermostat down to 55 (not a typo) and break out the blankets! It's amazing how comfortable we can get when there's down somethingorother to snuggle into. The cats love winter, for just that reason. Down comforters and blankets are snuggly!