I got rather over the big mess at the end of the bath due to at the time our household comprising of 6 people including 2 teenage girls.
So I bought a 30cm wide bookcase with 6 shelves, the younger kids didn't have a heap of bathroom supplies so they didn't need a shelf.
Sorry I don't have photos of the original set up as I wasn't blogging then and Miss 19 has moved out of home.
The original set up each teen had a full shelf, the rule was all your stuff must be kept on the shelf or in your room, it is not to migrate to the end of the bath, the basin or beside the basin.
Sorry only showing the top 3 shelves as the kids seem to always have mess in front of the bottom half whenever I go to take photos for this post and a 7month delay is long enough :)
Hubby and my shelves have items that are family use such as I have first aid supplies behind my skin care and he has nit shampoo in his basket (we live in Qld so this is a essential in every houshold, though we don't use the chemical based one due to my eldest having a severe reaction when she was 5).
On the top of bookcase is other items needed to be out of the reach of children such as peroxide, nail polish remover, hairspray, etc.
Note while my children are no longer young enough to need this I do have visitors with young children and like to keep dangerous things out of their reach.
There is a shelf for dental supplies.
Another shelf has a basket full of sanitary supplies so any female guests or household members can easily access these if they need them.
I wish I could find 2 or 3 more of these baskets, or just a set of matching baskets that fit the shelf space as well as these 3 do.
What is your storage solution in the Bathroom?