I just bought some Clean Shower - I'm hoping that'll help. Of course, you have to start with a clean shower, so it may be a while before I start using it!! Kathy, do you think that car wax is only for the walls? Because on the floor tiles it might be a little slippery? That's a good idea though.
As for miracle products, I absolutely LOVE the Mr. Clean Magic Eraser. It really IS magic. It gets crayon off anything - it even got permanant black marker off my table. It's also good for scuff marks and ground-in dirt too, for those of you not afflicted with crayon on every surface.
Angela