It is almost that time of year. Almost time to give the A/C a break and get some fresh air in the house. When the temps dip to an acceptable level open up those windows and get some clean air in the house. If you are a city dweller and the traffic noise and air pollution are going to be an issue maybe it's not a great idea but at least hit the parks and enjoy some nice weather. Ok now, while the A/C is off clean/replace the filter. If you can get to them vacuum the coils and do a thorough cleaning of the outside unit. While you are in the mode pull the fridge out and clean and vacuum the coils on it thoroughly too. The number 1 killer of refridgerators is dirty coils leading to overheating and inefficiency. Ok now the windows are open, the house is cool, but where are the bugs coming from? Apparently you neglected to check all your screens. Do it now. If the screen frames are in good shape you can replace the screen and spline yourself. If the frame is shot a local hardware store can make new ones. You may as well do it since once we put winter to bed we're gonna do it all over again in the spring. Enjoy the weather but think ahead. Do you really want to wait for the first freeze warning to think about the pipes?