To keep flies away put a zip lock bag 1/2 filled with water above your outside door. Flies will stay away.
By joaz2006 from Phoenix, Az
Place 5 or 6 shiny pennies in the bag also. Here is one comment I read from another site:
"Regarding the science behind Ziploc bags of water? My research found that each of the millions of molecules of water presents its own prism effect and given that flies have a lot of eyes, to them it's like a zillion disco balls reflecting light, colors and movement in a dizzying manner.
Get a roll of new pennies from the bank or get out the Brasso.
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