I'm pet sitting right now, and I'm often cold when I stay at other peoples houses. One of the very few benefits of having a tiny apartment, is that I can crank the heat up and stay warm in the winter. (Without paying through the nose.) I guess I'm pretty spoiled in that way.
Today I went home to get some work done in my office, and was welcomed by my nice warm apartment. It was cozy and toasty and wonderful. Warmth = happiness.