Good for you....I keep trying to turn the thermostat down to 74 or so, but then my Mom says she is cold. For Christmas I gave her a blankie for her lap, but she wants the heat “up a notch”.
I did turn the downstairs down to 70, but she can’t go down there without me.
If I open all the windows, there is a nice cross breeze.
During the summer, I set the A/C to 82...and compared to the outside, it’s perfectly lovely! :-)