How To: Keep flies away from you with a fun science project

Are flies ruining your summer BBQs? Did you know there is an incredibly simple solution? This tutorial will show you how to get rid of pesky flies with nothing more than a ziploc bag, water and a few pennies.
This method is basically free and can be accomplished quickly. The reflection of the pennies in the water messes with the eyesight of the flies and causes them to get all loopy and fly away.
Sounds so simple, right? Can't believe you haven't tried it yet? Well, now's your chance! Enjoy your fly-free summer!