We also have used Command Hooks in all our campers for years and years now. I also currently have one outside, on the side of the handle by the door steps to hang our outdoor thermometer sensor. It's been hanging there for 4 years now, rain, sun, and even snow. Still "hanging on" literally.
Inside we currently have several. We have a couple beside the bed for hanging our bath robes on, living room area for hanging things on, and kitchen area for hanging pot holders.
Of course, when we travel, everything comes down. As easy as things hook on them, bouncing down the road, they can bounce off too.
In our previous camper, we attached permanent stuff to the walls by using the sticky velcro strips. One side on the wall, the other on the object attached to it. When we sold the camper, we removed all the velcro on the wall with a lot of care so as not to tear the wall paper.
Command Hooks work very well. I have a few in my pass-through storage area also. I even have them hanging inside the shell of my pick-up truck. Works great for hanging small objects, like wire and such. I've never had one come off.