Homemade Laundry Soap

I know crazy!! But it is wonderful stuff and CHEAP!! Juliet has had a rash since she was born and it is now going away. Great for the baby and the environment also, And did I say it is CHEAP. Total cost about 4 dollars for 5 gallons of soap.
Here's how it goes:
1 Bar Zote Soap, shredded
1 cup borax
1 cup baking soda
2 cups super washing soda
4 gallons water

Put the shredded soap in a large stockpot with 1 gallon water. Heat on low until dissolved, if not dissolving add more water. After the soap is dissolved turn off heat and add other ingredients and stir. It will become thick. Let cool overnight and put into a storage container. Add one cup to each load of laundry. So easy.