Tubs and showers can produce some of the toughest grime, but it’s no match for the cleaning power of vinegar. To get rid of mildew, spray pure white vinegar on the offending area, let it sit for at least 30 minutes, and then rinse with warm water (don’t be afraid to use a sponge if rinsing doesn’t clear away the grossness on its own). Alternatively, try mixing together baking soda with a bit of liquid castile soap, then scrub and rinse.
For daily cleaning or to get rid of soap scum, mix 1 part water with 1 part vinegar (and a few drops of essential oils if you’re not into the smell of vinegar) in a spray bottle. Spray, let it sit for at least several minutes, and then wipe away.