Has anyone got a little shelf built into their shower for bottles of shampoo, etc? If so, would you recommend it or is it easier to stick with a tray? We are currently mid loft conversion and apparently the shower room is plasterboarded now so would be much more work to put one in - trying to work out if it’s worthwhile. We would have to have it on one of the two walls inside the quadrant shower, with the other being for the shower itself.