I have had mouse issues. I had a hole in my floor that they were coming in through and right now I can't afford new sub floor.... it sounds awful, but it is a small hole, not a big gaping thing. Anyway, steel wool keeps mice out if you know where they are coming in. I have two cats that kill the
buggers, so that helps too. Otherwise I'd go for traps, I don't have a problem with disposing of ...