Homemade Cleaning Supplies

I've been interested in homemade cleaning products lately. I wanted to save this recipe from The Grocery Cart Challenge to try. Hopefully I'll get to it soon so I can review it's effectiveness.

Homemade Tile and Grout Cleaner

1/2 cup baking soda
1/3 cup ammonia
1/4 cup white vinegar
7 cups warm water

Put the water and then all the other ingredients in a gallon container and shake to mix. Make sure to keep this away from anything with bleach in it. Pour into a spray bottle and spray onto tile and grout. Let sit for about 5 minutes and then wipe with a damp cloth, sponge or scrub brush. This really cuts through soap scum well too.