jw of 4 corners wrote:
Go to a natural food store and get peppermint oil. Put it on some cotton balls and put them in a few places in the living area and in the storage areas: NO MORE MICE. It also makes the camper smell fresh: just don't overdue it just a few drops on each cotton ball.
I put my cotton balls in a plastic cup so they don't stain anything. It works. It might not drive them out (as some have said) but it will keep them out.
Also try "Cab Fresh". It looks like a big tea bag but it has balsam fir which rodents don't like...Smells like a Christmas tree.