We also decided that it would be nice to have a place to hand our towels in the bathroom. I'm not a fan of hanging heavy things on doors, as it is likely to cause issues with the hinges. The bathroom is so small that only leaves one logical place (for me) to hang a towel rack. The flimsy wall that I just put the TP holder on. Shoot. I figured there had to be some sort of support on that wall, but where? The entire panel presses in, and I don't really trust that same little 1 x 2 to hold a family's worth of towels.
I wondered how that wall was really constructed, so I turned to the opposite side of it - the side facing the bunks. I took the lower bunk mattress and platform off to look at the back side of the wall from inside the under-bunk storage. Lo, and behold, I didn't even have to drill in to or open up that wall in any way. I could clearly see the 2x4 base of the wall. I found true dimensional lumber - a real stud to work with! I surmised that if the base plate was 2x4 construction, the top plate would be as well. Back in the bathroom, I used a couple drywall screws to mount an over-the-door style towel rack to that top plate.
I figure that should be enough to hold all our towels, and also an extra chamois to dry the shower out - something I feel I have to do to keep the mold and mildew away. Post-shower, I wipe down the walls, tub, and the shower curtain. The chamois should be able to perform this task once a day after we're all showered. I still want to do something about the ridiculously long and wide curtain - it's six feet wide, so it bunches up real bad and is hard to get dry. Mostly thinking about folding it back on itself so there's not as many "folds" in it when "extended" to close the shower enclosure.
**Edit** Added the following
One more thing on the topic of showers - I hung a couple command hooks in the shower for hanging really wet stuff - shower sponges, and I figure can be used to hang swim suits when we have the opportunity to use those.