1. Dust the heater/radiator so that you don't get a whole lot of dust flying around when it's time to turn them on. Use a rag with water and vinegar to clean them rather than a commercial cleaner so you're not just replacing the dust with harmful fumes that will blow around the room.
2. Let fresh air circulate. Make a point of opening a window while you clean to let out any harmful/unpleasant cleaning fumes and let fresh air in to avoid letting the air get stale. Most spaces only need 10-15 minutes to freshen up and then you can close up and turn the heat on.
3. Be like the ant, not the grasshopper. Or be a squirrel, just don't forget where you buried your nuts. Keep an eye out for deals on your preferred brands of household items like toilet paper, laundry detergent, and super versatile vinegar. Stock up on some of your favorite comfort foods. An extra trip to the store when you realize that you're out of something is that much harder as the weather gets colder.