A.W.
here's what i've heard...dawn mixed with water an vinegar in a little dish. i tried this. i didn't work. get a small bowl. put a banana peel in it. cover with plastic wrap. poke holes in top. gnats fly in but can't get out. i have yet to try this. the thought of an old peel sitting around kinda grosses me out!
i will be watching for the responses though because i have the EXACT problem. and if one more of these little pests flies into my mouth or nose i'm going to go crazy!!!