With our thermostat the heat is on or the AC is on, Jamie. Otherwise it'd be battling it out most days because the house gets hot in the evening. It faces almost due west and there's nothing blocking the sun at all.
I'm fortunate that Lisa and I are on the same page temperature-wise (much like everything else). At first, she liked it colder in the winter because she was used to it. Once I showed her the joys of NOT freezing your ass off all winter, she's jumped right on board. We have a gas fireplace in the living room and she turns it on even more often than I do. Nothing beats sitting in front of an instant fire when we get chilled. We use it constantly, we call it the "microwave fireplace".