My wife, kids, and I lived in an old farm house located in a marshy area of the Midwest without AC for nearly a decade. Summers in the upper 90s with really hi

My wife, kids, and I lived in an old farm house located in a marshy area of the Midwest without AC for nearly a decade. Summers in the upper 90s with really high humidity. I've also spent a fair amount of time with family who don't have AC south of Flagstaff. * Windows and doors wide open all night, always paying close attention to the temperature outside. Once it's hotter outside than in, we'd close up the windows and blinds. Typically this only lasts for a few hours. * When you live without AC, your body adjusts to temperature more quickly. So, you turning AC off for the day feels markedly worse than if you didn't have it at all. We'd be "fine" outside on a hot day while our family members with AC would turn into puddles. * When it's really bad at night you tuck your pants into your socks and your shirt into your pants (bugs), then go sleep in on the ground in the yard. * You eventually just accept that you're going to be hot and uncomfortable. Personally, once I hit this point I realized the feeling that you can't escape the heat is often worse than the heat itself. Interestingly enough when you live without AC it's common to get headaches when you go into a HVAC controlled building. Edit: grammar