I have a 2 story apt with 2 zones of heat (paid for by landlord, yay!!) Downstairs I keep at 72. It is one big room with baseboard heaters along walls and an unheated "sunroom" type kitchen attached and 3 steps down. Upstairs I keep at 65 for sleeping but it winds up being about 69 because the bathroom baseboard is actually on my landlord's thermostat (next door).
I have about a 1.5 degree comfort zone and am always putting something on or taking it off. I find a pashmina is just the right weight to take the chill off without getting too hot, so I keep one on my chair. A cotton sweater works well too.
I am just REAL HAPPY that after so many years of heating with wood, I don't have to do anything but turn a dial!! Bliss!!