Litter box.. were to put it?

shower also

Originally we had ours in the shower, which as a pain when we wanted to take a shower
I eventually did some cabinet work
link to photos

Shower +
We put a piece of circular foam pipe wrap over the sliding trough that the doors slide in. Cut a piece to the exact length, then cut a lengthwise slit so that it will fit snugly over the track. This keeps kitty litter out of the track and clean up is easy.

Our former "C" had the dinette with storage under the seats. It also had doors on those areas and the cushions came off for converting into a bed. This made it easy to clean the box.
I removed the door, lined the interior of the storage area with a rubber backed rug (a few staples held it in place) and we put the box in there. Once the cats were used to where the box was, we put a cloth door on from the inside.
We also put an odor absorber in there.
Worked good for us.

Back at home.

Shower.