I'm so stingy, I will only put the heating on for about an hour in the evening (and that's usually only if the temperature is around freezing or we've got snow!) I do like being warm though, so I'll bung on lots of extra layers and sit under a blanket all evening!
Everyone else in my house seems to be warm quite a lot of the time, they sit around in t-shirts and shorts whilst I'm bundled up in my dressing gown with the hood up! I live in the South, so I guess it's not always as bitterly cold down here.
Years ago when I was a student, I went home with a boyfriend who was from Leeds and we stayed with his parents for the Weekend. I had never endured cold like it - I actually went to bed in all my clothes...and my coat...and I was still cold!
I've often thought about investing in an electric blanket but even under the winter duvet, I get too hot in the middle of the night and have to stick my legs out, then I'm too cold and put them back under the covers and so on all night!