Thanks for sharing. Gotta try this over the weekend.

wow who knew....going camping in a few weeks, will definitely give it a try...

Does it work just on your basic fly, or, on mosquitos too.

Read through all the posts looking to see if someone beat me to this.
I always check snopes first. They aren't saying it doesn't work though.
If you have a fly problem, guess you can look at a gooey icky fly strip hanging from the ceiling, or a bag of money. :)

I have a doggy door and have to keep the plastic open for my little dog. I will try this and see if it works this summer

My mother used the cotton in the screen too! Can't remember if it worked or not. Since I don't have a hole in my screen think I'll try the ziplock bag.

How do you hang them up without piercing the bag and making it leak?

My classroom gets bees and wasps in the windows all through the colder months-October through at least March. (When it warms up they move out.) I'm going to try the water and penny baggies in the window sills next fall and see if that helps.