1-2 cups vinegar
1 cup Dawn dish soap
water (optional)
Great for cleaning anything with grease, soap scum, or mineral build up.
Fill the bottle starting with the vinegar to stop it from bubbling up. If the smell is too strong, or your surfaces aren’t very bad, you can add some water.
Spray on the surface you are cleaning, allow to sit for awhile, then wipe off with a wet washcloth.
You can also spray down your shower shortly after taking one and let it sit until the next one. Then spray it off or wipe it down when you get in.