I found a new recipe for home made laundry soap:
1/3 cup washing soda
1/3 cup borax
1/3 cup Dr. Bronner's Liquid Castile Soap (I used Lavender, but they make Peppermint, Almond and Unscented as well)
Put all the ingredients in a 1 1/3 gallon laundry detergent container, fill with hot water and shake. It is much easier and a lot less messy than than my previous recipe, which involved grating and melting Fels Naptha soap on the stove, etc.
I will use the left over bar of Fels Naptha Soap for stains instead of Spray and Wash Stain Stick (thanks to Dwija at House Unseen, Life Unscripted for the tip!
I'll let you know how it works out!