I use a shower tent, and place it next to the rig. OUr current shower is on the back side of the rig, but the best placement I ever saw was on our old travel trailer, which was on the back. I use teak-wood dick boards I found at a yard sale. commonly used as trivets for potted plants on a patio. I got two f them, and they are perfect. Since the water brings in Yellow Jackets, I also hang the Yellow Jacket Trap nearby. A little gravel, or a lot of pine needles, and viola, a dry area.
My bride and I both have nice robes, so we don't have to try to dress in the shower tent, or streak to the door. Works out great. Showering all those muddy little grandkids out there is far better, too. Doesn't fill the grey tank.
2017 Puma Unleashed, 38 ft.
Dodge Ram 2017, 3500, Dually.
Tiger Force Medic, 68/69