Using Herbs to Repel Bugs?

My neighbor mentioned hearing that placing potted basil beside doorways, on the patio or near the grill will repels flies and other flying pests. I have not heard of this. In looking online I see that mint will do the same thing. What type of basil and mint? I would like more info on this. Also, is basil as a companion plant for tomatoes? Thanks.

By melody_yesterday from Otterville, MO