I had $500 bills last year with my antique single-stage furnace. I got a new one in the spring, still hitting $250. Same old brick house.

It really saves you no money to make that think crank for 2 hours every morning to get back UP to 67. ESPECIALLY if you have a single-stage box. You're better off maintaining.

I also put plastic on the window this year, and bought draft-blockers for the doors, and did some other stuff recommended in this thread.

Gas prices are insane, so you're not going to have a "low" bill, but do everything you can to minimize heat loss.