I have a horrible problem with flies!?

I live in a great neighborhood, nice new house, and every time I open my door a gust of flies come in, they sit on the plants outside and just swoop in when the door opens. I have so many in the house I don't know what to do, I swat and swat and there are still sooooo many! Any suggestions??

Answers:
spray the plants and all the flies you can with diluted dawn dishwashing liquid

Other answers:
garbage cans nearby?move them away and cover them,no?clean up the yard if you have a dog.
garbage cans nearby?move them away and cover them,no?clean up the yard if you have a dog.
Set off a flea bomb. Will end your problem.
There is a new predator fly that doesn't bother humans or animals, i.e., horses, etc.. Read about it in a horse magazine. They are inexpensive and should relieve your problem. A search through Yahoo for predator fly should turn up vendors. Also, lemon scented dish soap with lemon scented ammonia sprayed on your yard with a hose-end sprayer will eliminate any bug problems you have.
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