Pour 3 cups of water, 1/2 cup of vinegar and 1 tbsp. dish soap into a spray bottle.
Spray this homemade cleaner over your entire shower and let a thick coating of the spray sit on the shower surface for 10 seconds.
Scrub the shower with a wet sponge and then rinse the shower with clear water.
Squeegee the shower after each use, when possible, to minimize buildup.