we have an older 5th wheel and I took an idea for the home from pinterest and I bought one of those cheap vinyl shoe organizers and I cut into pieces and stapled to inside of wardrobe doors. In the wardrobe where we keep DS's clothes, I use these pockets to hold his socks and undies. Then in ours, I use it for things that get scattered around when taken out of pockets, etc (wallet, watch, glasses, etc). I also purchased 2 totes that are a little smaller than a file box and put one on bottom in each side of the narrow wardrobes on either side of our bed. DH & I each use the one on our respective "side of the bed" to put our socks and undergarments in.
I also keep a notepad and a few pens in cabinet above tv. These come in handy to jot down things we need to replenish, forgot to put in camper first trip of the season, etc.