My parents have 3 window units, two in the back, and one in the front. I bought one of the fuckers in the back of the house because the shit was ridiculous. Then when I moved out my brother slid into my old room .... and now that I had to move back in. I'm in the middle of the house where the cool air doesn't reach.
Also my mom turns on the heat as soon as the temperature dips below 50.