I mix one cup of vinegar with 3/4 cup blue dawn dish soap and heat it for 1 minute in the microwave. Then I use a spray bottle to apply it in the bathroom. Put on the fan and leave it running. Let it set ten minutes or more if you like and then wipe it up (I use a window squeegy on glass mirror and shower doors). It really cleans everything well!

Here is a good one that is on Hometalk: https://www.hometalk.com/26009573/the-best-homemade-bathroom-cleaner-tested-proven-only-a-few-items

The BEST Homemade Bathroom Cleaner (Tested, Proven, Only a Few Items)

Hi Paula,

Sprinkle the tub, sink, or grout with baking soda, taking care to reach all areas of the tub. Use a spray bottle filled with vinegar to spray over the desired area and let sit fora few moments. Scrub the area clean with a brush and rinse away with water.

Hi Paula - This is the shower cleaner that we use to help keep grout and tiles clean and minimize the mildew - it works on kitchen grout too. Hope this helps! Hugs, Holly

https://pinkfortitude.com/shower-cleaner-diy/

PS - We have a FREE eBook with recipes for all of my homemade and all-natural cleaners. You can download it here --> https://pinkfortitude.com/thank#GreenClean