[sourdough]

I will chime in for Fresh Cab. When I was a kid my mom used moth balls in the closet and things always stunk to high heaven. I've used them for a rodent deterrent and all I got from them was a very stinky product that might have marginally worked. Fresh Cab on the other hand smells good; in fact I like going into my storage barn and immediately I get a nice whiff of Fresh Cab - pretty nice....and it works too! I've not had any mice while using it.

Edit: I will say that not only do I put it inside the RV I put it at each wheel and the tongue.