Even in the Deep South the temperatures have suddenly dropped. As I write this it is 38 degrees outside. So far I have managed to keep the heat off. The house is well-insulated and as long as the daytime highs stay in the 60s it is enough to warm the house up. When it does get colder I have an electric blanket. I've owned it for over 25 years and it still works fine. I also have a radiant heater which works really well without consuming too much energy. Turning on the central heat will be a last resort, something I always wait to do as long as possible.
This week I have several mystery shopping assignments lined up. It's not a full week of work by any means but it's enough to earn a few hundred dollars.