Flies, Flies, go away!

Somewhere on-line it says that a flies life span is from April to August. Well, it is September and somehow over 15 flies crept into my house today! I thought we only had one or two yesterday. But today I decided to get the fly swatter out and they just kept coming back for more. One is taunting me as I type this, flying back and forth in front of the computer screen. Or, maybe there are two of them. I obviously was way off with the previous group. I feel like I am walking into each room with my "fly sensor" on. Listening for that annoying buzzing and searching for the dirty black spec. I am not a fan of flies and am ready for them to all freeze and go away for a while!