Office space in an RV wheel under the bed. Could also build a fold/lift up perm wooden station so items don't have to be put up & down when you put the bed down. Maybe even on of those lift up coffee tables?
One of my favorite organizing hacks I use on vacation, suction cup hooks on the side of the RV to hold our towels. Each towel color is assigned to each person so we know which one belongs to which person.
Cool idea for keeping track of campgrounds you've been to. Good way to make note of the best sites for reserving for next time. I like the template to add to the binder I started with campground maps/fliers.