I have cleaned our pup s exterior canvas with a light solution of Dawn dish-washing detergent and water with a soft scrub brush. If there is mold and mildew or stubborn stains Bass Pro makes a all natural cleaner that really works great. After washing it I always put new waterproofer on it to be sure it sheds water the next season. Lastly a liberal amount of Bounce Original dryer sheets are put everywhere inside. I put them in because I like to think it helps keep the mice away. We have had no problems with mice so for me I have to believe it works. If it doesnt help repel the mice it sure does make the pup smell good and fresh for the new season.
 

I found dryer sheets tucked in all the corners, around the water intake hose, and the door threshold deters ANTS. We had mouse signs (read: poop & smell of pee) on the extra bed and the countertop last winter. After disinfecting, to deter any further problems, I put small pinecones dipped in Blue Spruce essential oil into a shallow metal container (such as a canned chicken breast can with saved lid). The smell of the pine deters mice (we haven't had any more signs) and also makes one feel like you're in the woods! It's relaxing as well if you like Blue Spruce trees. The can lid is placed over the filled container when we are in the camper since we have dogs who could knock over the can and spill the oil.

For ants, use Terro. Just put it by where you see the ants, that will take care of them.
http://www.homedepot.com/p/Ter...../100595879

Best Regards,
Norm