A reader requested my recipe for homemade laundry soap. I'm a casual, little of this, little of that kind of gal who seldom measures but here's what I usually do.
Into a 3 gallong covered bucket I pour ONE 76 oz. box of 20 Mule Team Borax, TWO 55 oz. boxes of Arm&Hammer Washing Soda, and ONE grated 5.5 oz. bar of Fels Naptha Laundry Soap.
The key is to pour the boxes of Borax and Washing Soda slowly as they can become airborn and burn your nose and eyes. I have an old wooden spoon that I mix the contents up with. I use about 1/4 cup per full load. This mixtures lasts me six months - but I only wash about two loads a week!