I moved to a better climate.
Before that I sweated a lot and tried to move very little.
I lived in CA along the west coast north of san Francisco; not a residential AC unit in sight. Ideal mild weather year round.
Then TSHTF and I lost my job after 45+ years and was offered another in the central valley, a developing desert of temperature extremes. And while away working, my wife divorced me and sold my house. But that's a whole other story.