On our maiden voyage, we failed to throw out the trash at one of the campgrounds. Unfortunately, the trash can subsequently fell over, spilling the trash all over the inside of the trailer. That was a terrible mess, with coffee grounds ending up all over the place.
To combat this problem should we forget again, I devised a way to keep the trash can upright. 2 eye hooks and a bungee strap later, we're good to go. I had to be cautious to not just screw into the paneling. I located a "stud" inside the outside storage bay which I could secure into. So I have one hook in the cargo bay stud that is adjacent to the wall, and one about 16 inches away.