I google this recipe, and now I can't remember the exact website I got this from, but just so everyone knows, I did not make this recipe up. So... first you need to buy the following ingredients. I purchased them all at Winco in the laundry isle.
3 Boxes Super Washing Soda
2 Boxes Borax
4 Bars Fels Naptha (or another washing soap)
2 Cups Baking Soda