Dryer sheets

Well, contrary to the general opinion in this thread so far, we do use regular Bounce in our trailer before putting it into winter storage, and we have never had a mouse enter our trailer. (And, when I say we use Bounce, I mean we use practically a whole box -- in every cupboard, shelf, drawer, under the bed, behind the couch, on top of the slide, in the storage areas, literally EVERYWHERE!) Our camper pretty much always smells Bounce fresh...