In the back of the Winnebago, under the bedroom, is a huge storage area with access three ways.
I have put all my supplies into a large wheeled tub.
Here they are all out:
And here they are all in:
The brightly coloured zippered cosmetic bags were a gift for our travels, but they are much too nice to keep for the bathroom.
The toiletries bag shown open, with pens, markers, coloured pencils, water colour pens…