M.B.
Hi K.,
I too am interested in making my own laundry detergent to save money. I got the recipe below from one of my fav websites: www.debtproofliving.com. I recently found Fels Naptha bar soat at Meijer in the laundry aisle however, I've been able to find the super washing soda online only.
To Create own laundry detergent: combine 1 grated cup Fels Naptha soap , 1/2 cup Arm & Hammer Super Washing Soda, 1/2 cup Borax. Use 3 Tablespoons per load. Store in spill proof container to store all.