Over/Behind The Toilet
This space is a great spot to easily add shelving to store your tissue box, make up, or even extra toilet paper.
Under The Sink
There is lots of potential here. You can hang storage solutions on the door. Add drawers or shelves underneath.
Behind The Door
Behind the door is a great place to hold towels, or hang clothes you need after your shower. You can even get full shelves if you need for some extra storage.