This is unbelievable! I just attempted this recipe less than an hour ago! I saw the recipe on the Duggar Family Website. We'll see how it goes. I used Ivory soap as the bar soap because of my sensitivity to heavily perfumed soaps.

Not sure why it would not rinse out any differently than commercial soaps since washing soda (sodium carbonate) and borax (sodium borate) are in most laundry detergents. Ivory is supposed to be rinsed out easier than most soaps also.

The cost of creating 5 gallons of liquid soap came out to $1.02 not including the water. At that cost it was at least worth a shot. My wifes satisfaction is all that counts in this case so I will report back here opinion in a few days.