Homemade Liquid Laundry Detergent?

Someone posted this on TF awhile back. I saved it for a friend, and adapted it to her reduced lifting ability and means.
Homemade Laundry Soap
Ingredients, Full Batch
2 gallons Water (hot)
1 bar Soap (grated)
2 cups Baking soda (yes baking soda not washing soda)

Ingredients, Half Batch
1 gallon water hot
½ bar soap grated
1 cup baking soda

Ingredients, Quarter Batch
½ gallon water hot
¼ bar soap grated
½ cup baking soda

Instructions
* Melt grated soap in a saucepan with enough hot water to cover. Cook on medium-low heat, stirring frequently until soap is melted.

* In a large pail, pour hot water. Add melted soap, stir well.
* Then add the baking soda, stir well again.
* Use half cup per full load, 1 cup per very soiled load
Note: add ¼ to ½ cup hydrogen peroxide per load for extra whiteness.
Hope this helps. JustPlainJo