I was sitting here cooling off after riding Harley and noticed the sandwich bag full of water above my front door and remember I was going to tell you if it works or not:)
Well, I'm not sure:) I don't have any flies in my living room, but I do in the laundry room where I have to keep a window open because the drain hose from the washer runs out there (that's a long story).
Other years we have had a terrible time with flies in the living room. So does our not having them in the living room mean it's keeping them out. I can't figure out how to put a bag in that window, because the window holds the hose in place and that's not high enough to put a bag.
So, I don't know if it really works, hard to say.
Becky
Just yesterday I was gonna ask about that. I hadn't bothered to put them up in our doorway yet, but I had the door open and was getting a few flies.
Huh. THat's interesting. Worth a try, I guess.
I forgot too - I've got them sitting on the bannister of my porch and yes - amazingly enough they seem to work. One fly in my house so far this year :)