Just before I close up our Trailmanor for the year, I always take Downy or Final Touch dryer sheets and put them through out the trailer. When I open up the trailer in March, the camper smells really nice, and you do NOT have the musty smell that you can get lots of times. Also, I read in Trailer LIfe Magazine that the smell of the dryer sheets keeps mice out. That is why I put them under the sink and anywhere mice could enter. I have owned a 1993,1994,and now a 2002 Trailmanor, and knock on wood, I have never been bothered by mice. Also, I take moth balls and spread them on the ground under the camper. any comments, just let me know. Bob Strong