It's a constant battle in my house also, b/c my house is about 2300 square feet and although most of the windows are double glazed vinyl or whatever, it still costs a fair amount to heat.
I said, if I'm wearing 2 layers on either half, and I'm still cold, I get to turn the heat up. That or lie next to the big warm furry dog.'
I thought it got very cold in Sweden.
Sig Credit to Toxic