AC vs Open Windows

This time of year you have to go day by day to see if you need to have the air conditioner running or just have the windows open. We shut down the AC last night and left windows open all day while we were gone. When we got home we quickly shut the windows and turned the air back on due to the heat. Tonight we will probably open the windows again. I, for one, do not easily complain about the heat because I know that before we know it, the cold weather of fall and winter will be upon us again. The nice thing about winter is that my new job keeps me indoors where it is about 70 degrees. That hasn't always been the case as I used to work outside in all sorts of weather. I don't miss it.