When the temperature drops outside you should have a little talk with your roomie, boo thing or parents. Try to avoid WWIII while you explain to them that you can’t afford to heat the place at 80 degrees all winter. They’ll just have to tough it out or buy some socks that don’t have holes in them.
Next, prepare for a shockingly crafty and time-consuming battle for thermostat control. It’ll be worth it when the bills come.