I have a "recipe" that I found a few years ago for a bathroom/tub/shower cleaner and I have found none better. First put some water (about 1/2 cup) in a spray bottle, and then add 1/4 cup of bleach and 1/4 cup of laundry liquid.Change the measurements to fit your container.
The laundry liquid is concentrated so it needs to be diluted with the water and will not react with the bleach! This cleans the bathroom better and cheaper then all those high cost bathroom cleaners. It removes soap scum and mold and mildew and isn't really sudsy since the laundry detergent isn't! I never figured out the cost but it is a lot less then the $2 a bottle for the bathroom cleaners!