I Hate Flys!!

Everytime I open my door, a retarded fly always ends up inside my house. Most of the time its about 4 or 5 and me and Lupe are always trying to kill them. The past weekend, we decided to stay in and he was going to grill. Our luck, we were being attacked by flies! It really sucks because they are super annoying. Especially when I am talking to Lupe and then a damn fly just decides to make a landing right on my forehead! Not cute. So I remembered, when we would go to Mexico my Grandma Juanita would cook and flys would just attack! So before she would cook, she would hang up a clear plastic bag, halfway full of water and hang it. She would actually do a few. And the flys would go away...I dont know how...but they would not swarm around us. So we tried it...I must say it was pretty successful.