I have a collapsable laundry basket similar to post #5 but tall instead of wide while holding dirty clothes. (Lowes or Home Depot has)
I found a huge carbiner clip at Home Depot or Lowes. I put the handle through the carbiner clip and clip over the clothes rod in the shower and fill as we go.
There is likely room for 2 bags to sort the light and dark clothing.
When it is time to take a shower just unclip and then put back in after the shower. THis works very well in my 86 Motorhome.
For washing the "fermented" clothes, add 1/2 cup white vinegar to the water as you begin the was cycle. This will take out the mildew smell and somewhat soften the clothes at the same time so you wont need fabric softener unless you have fleece. For those, I just hang to dry.