I'm not sure if this is the right place to ask this question, but.....does anybody use those 3M "sticker"/hooks in their campers? We have not purchased our HTT, yet (still deciding which is the best fit), but looking at storage...I'd like to put some hooks on the wall....especially in the shower. The main walls almost look like they are wallpapered in these campers, and I'm not sure those things will stick. I'd like to hang towels from them, so a little heavy for the wall? Also, has anybody tried a tension rod in the bathroom? Looking to have some hanging space, and we don't intend to use the shower. Again....are the walls strong enough to support this?