I am looking for ideas in keeping mice out of my Montana fifth-wheel. I have used Bounce sheets, moth balls, electronic "pesticator", steel wool, foam insulation, and poison. I haven't seen traces of mice inside the camper since adding the Bounce but they are still entering the storage areas. I believe they are entering around the legs in the front. I have tried to block that opening with steel wool but the mice just pull it down. Does anyone know about a cover to block these huge openings for the legs? My Montana is permanently parked at a campground so I'm not worried about having to remove the cover often. I am especially worried about this winter when the electricity is off and the "Pesticator" isn't operating. Any suggestions?