Sol-cicle

I am really wondering what temperature you all set your thermostats at. We are having a bit of a debate about where ours should be. The trouble is balancing the need to limit the amount of fossil fuels we are burning up with the need to maintain a semi-comfortable body temp. I don't mind wearing layers, but I draw the line at beaking out my Mukluks for indoor use. Please tell me what is normal so we can figure out which of us is being unreasonable.