I found this recipe in the recipe section. However, I thought there was a different way of doing laundry soap that involved dissolving the soap bars into water and adding lye to that. (can't remember obviously.) Anyone have a link on laundry soaps? Also, do you need to use a vinegar rinse after wards with this one? Laundry Soap 1 cup fine ground soap (can be any kind) 1/2 cup Washing Soda 1/2 cup Borax 1/2 cup Baking Soda Mix all together. Use 2 TBSP per load. For heavy soiled.. use 3 TBSP. Note* There will not be a lot of bubbles.