I keep my heat set on 66 in the winter and my AC set on 77 in the summer, and it’s really not bad. When I’m not at my OK house, I leave the heat on 55 in the winter and 85 in the summer.Germans set their home temperature on 68 degrees in the winter and everyone in the home typically wears a sweater. It's hard for Americans to get used to, I used to go down in the basement and turn up the heat and the landlord would chastise me.
Most folks I know here in TX keep their AC set between 68 and 72 and continually b*tch about their electric bills.