I'm going to put it out there: I do not like science.
I repeat: I do not like science - any kind of science.
However, this is pretty cool. When we were in Florida a few months ago, Norm's dad had these contraptions around his porch. It's a zip lock bag with water and a penny inside of it. It's supposed to repel flies.
Skeptical about it, I Googled it. And of course, if it's on the internet, it has got to be true. When we got back home, I set up my contraptions.
I have one on each side of the porch. I won't say "no" flies, but I will say overwhelmingly less flies.
Skeptical? I'll save you the search. Read here.