Here is how I make it:
2 4.5oz bars Ivory Soap
1 Cup Arm & Hammer Super Washing Soda (Not baking soda)
1 Cup 20 Mule Team Borax
First Grate the 2 bars of Ivory into a bowl, the smaller side of the grater works best since we are trying to make a powder. Some people use Ivory flakes but I haven't tried it.
Break up the grated soap a little more squishing it through your fingers, we want it to be as small as possible.
Then add in the Borax and Washing soda and stir stir stir.
For a normal size load add 1 tablespoon of soap, more for larger loads less for smaller. This amount does about 45 normal size loads.
Thats it, easy peasy.
~You can use other soaps, but from what I've read you need to be careful of the oil content, you don't want to add a bunch of oils to your laundry soap.
~I usually wear some kind of face cover when I'm making a batch because it makes me sneezy and it cant be good to be inhaling a bunch of it.
~This is where I found my recipe---> http://diynatural.com, they also did the math on the price difference. $$$
~When I buy my bars of Ivory I open them up before I store them, so when I get around to grating them they are a bit more dry and that makes it easier.
~This does not suds up in your washer, suds do not = clean..