Homemade Laundry Soap

I've got this recipe for dry Laundry Soap and I cannot wait to try it. It' s extremely economical, and that's the kind of thing that gets me excited! A week ago, my son and I drove to Twin Falls to do some shopping before school and went to Wal-Mart - They did not have the ingredients I needed for my homemade soap - I'm so bummed. But, I want to share the recipe as I will be making it soon enough and for some reason I am just intrigued by it. I feel like over the years I've over-looked so many simple, money saving ideas. Had I of known about this years ago, I would be already using it today.
There are liquid and dry versions. The liquid recipe was for a very large family and would last them a year. The dry recipe seems more suitable to my needs and very simple to make.
A few weeks ago, I bought a box of detergent and sent that with my son. So within the next couple of weeks I have to find the ingredients.

Homemade Dry Laundry Soap
2 cups grated soap - Fels Naptha, Zote, Ivory or Kirk's Castille, not a heavily scented soap
1 cup Borax (I know, Wal-Mart was out of it, weird, huh)
1 cup Washing Soda - Arm & Hammer

Mix all 3 ingredients in a bucket for about 5 minutes. Store in an airtight container. Use 2 tablespoons per load.
Simple, money saving things like this are so fascinating!! Laundry never seemed like so much fun - can't wait to try it!!