I have tried the pepper, vinagar, bleach, and Borax. Even tried something called Terror from the lumber store! They loved the Terror (it attracted more) ignored the bleach, pepper, and vinagar. They are so bad in our area that everyone is going nuts about them. They come right through the screens around the tub and nest in the walls I think. The bait traps don't work and I have to be carefull of borax around the kittens. Thank goodness I don't have a fly problem! LOL My house smells like a diner but the only thing that it doesn't bother is the ANTS!!!