Autumn has arrived in British Columbia, and in the mornings it gets a little chilly.
I'm a cheap bastard who also hates having the ICE turn on unnecessarily, so I've adapted over time to keep setting my climate to whatever the lowest possible temperature is that also won't result in cold air coming out, while setting the fan speed to the minimum (1x). I'd actually turn off HVAC entirely if it didn't result in a stuffy car and the windshield fogging up (safety hazard). The temperature I set during the autumn and winter averages 17-20 Celsius which is 63 to 68 Fahrenheit. If a passenger complains, I tell him/her to suck it up :P After all, I'm wearing a thick jacket anyway and if the wheel is cold, that is what gloves are for!
I find that this helps me achieve fuel economy that is on par with or even better than what I get during the summer. I've seen others set the temperature to 22+ Celsius inside their cars during the winter which is a horrendous waste of gas, and in a hybrid, would result in the engine growling for the entire trip.
And of course, if your body is cold the electronic seat heater is far more energy efficient than using HVAC. I haven't touched the driver's side seat heater even once since I bought the car though, as I have survived far colder winters in a car whose driver's side heater had SHORTED OUT (my old Fusion).
Does anyone else follow a similar mindset (being stingy with heat) during the winter? It's a great way to maintain those 40mpg+ figures. I'm guessing that in extreme cold (i.e. east side USA) my strategy would be less effective, but it would probably still beat abusing the heater.