

So many people just turn on the AC without doing anything on preventing heat in the first place. Things you can do before the AC needs to help:
- open all windows in the morning when it is cool. Close them when it gets hotter. This traps the cool air inside.
- shade your windows (those overhang things on windows, tint film, curtains, plant a tree)
- stop using machines that produce heat (oven, vacuum cleaner, dryer, etc)



OK, fair point. I was a bit naive. I was looking at it from an European standpoint. The nights are cool here and the houses are all made of bricks and very thick insulation. In those circumstances it is possible to trap the temperature. In my house the inside temperature is currently 22C/71F and outside 34C/93F. No AC needed.