Just opened up the trailer this morning from its long winter nap to check things over and start getting ready for camping season. I found one single mouse turd in a drawer. I have tried all of the gimmicks over the years in the boat and camper. Always found the best thing was just good ole Bounce dryer sheets. For the last 3 years I have been also using a product called Grandpa Gus's Mouse Pouches in addition to my dryer sheets and noticed that we didnt have any mouse **** at all. Last fall I decided to just use the mouse pouches. Same results. one single little turd is a victory to me.
To give a little background my trailer is parked on a farm right by a machine shed full of farming equipment including a feed grinding mill, so mice and rats are a staple of the area.
I have no affiliation to this company. Just thought I may be able to help out fellow RVers
1993 Chevy C3500
2005 Cedar Creek 34RLTS