In the 4 years I am hosting, I always have a listing with shared bathroom. I do not really like when guest's toiletries cluttered in the bathroom. Especially if the bathroom also shared with other guests (then it will make me look to be the one that cannot keep the bathroom clean). So, I bought this caddy from the container store (this is my favorite because it is made from flexible plastic, so it will not break!). I put one in each of the private room that I rent out that have a shared bathroom (different colors). During check-in tour I always explain that everything they have that belong in the bathroom to be placed in the caddy and put the caddy in the designated space that I already labeled. Since then, the number of toothbrush left by the sink or shampoo left in the shower have dropped down significatly. So, maybe this system can be helpful for some hosts in this forum.