Have not run the heater yet this year...it's 53 degrees inside the house.  We had several freezing nights this week, but the extra blankets on the bed took care of that. Sitting in a down sleeping bag on the couch works well too.  Just to see how long I can hold out...
You're single aren't you.  I've tried to hold out.  Last year I got made it to the end of december with out it. This year, I get an ear full when I set it below 68.
Oh man, I hear you! Thank goodness I heat with wood, or my wife would have me in the poor house with all the oil she'd burn. I cut all my own wood (about 6 cords), so a heating season ends up costing me about $200 - all things considered. If it gets below 70 in the house she complains. And that's better than she used to be - 74 was the old comfort level for her.
Blame modern sedentaryness at least in part.....

In the process of moving to my new place I had to do a lot of heavy work over 3 days, and I could not believe how warm the new place seemed. It's warmer than the old place true, but I find my tolerence to cold goes up a lot if I'm doing a lot of physical activity. I was walking around downtown in a t-shirt while everyone else was bundled up!

The last day or so have been very active for me, and again my cold tolerence spiked again.

If you could get your wife doing exercise, her cold tolerence would probably go up quite a bit - and the prospect of doing some push-ups before going to bed in the Finnish tradition to sleep warm, would not be so frightening.

I see some gals who are just HUGE (what can I say, I live in the US) and they're very cold-sensitive, it's amazing with all that insulation, but it's the result of an extremely sedentary lifestyle.

Travelingwxman,

Have you considered withholding sex as a bargaining tool?

I find that once it gets too uncomfortable I shut down. I have to go crawl in bed to warm up. I have stuff to do. I can't afford to just hibernate for 3 months.
I know that "frozen in place" feeling - some activity or a hot cuppa tea solves that, one of those little things that's made to boil up water quickly can, with tea leaves of course*, can provide that hot cuppa quickly and frugally.

*and it's amazing what you can call "tea" in various cultures so it does not necessarily need to depend on globalism.

Is this code for something? This "hot cuppa." In my country we would say you are a little funny.