When my husband and I lived in our motorhome and we were at the campground, those nasty creatures would always get into the RV. Our solution was to take comet or ajax powered cleanser, and surround our motorhome with it in a line around the whole outside area. Miraculously, those little creatures didn't come anymore. that power kept them away. The ones inside, were eradicated with teh white vinegar spray. had to do it a few times becuase their relatives were already somewhere in teh rv. but after about our 3rd try, they were gone. In our house, we have no ants and no spiders and no bugs whatsoever. We purchased one of those ridex devices that kill through the walls by electrical current. One in the master bedroom and one in the living room. haven't seen a bug, spider, etc. in over 3 years now.