Homemade laundry soap...cheap, cheap, cheap!

I just found out how to make laundry detergent and it's so easy and SO cheap to make, I wish I'd known this years ago. With all the bedding and towels we wash in the summer with the B&B and cottage rentals this is going to save a bundle. I found the borax and the washing soda side by side in the detergent aisle at the superstore. The bulk barn had the laundry bar soap.
The recipe :
1 bar regular people soap like dove or 1/3 to 1/2 bar laundry soap
1/2 cup arm&hammer washing soda
1/2 cup borax powder
Bucket or container with lid. This makes a bit over 2 gallons.

Grate the bar of soap and put it in a saucepan. Add 6 cups of water and heat it, stirring occasionally, until the soap melts. Add the washing soda and borax and stir til dissolved. Remove from heat. Pour 4 cups of hot water into the bucket. Now add your soap mixture and stir. Now add 1 gallon plus 6 cups of water and stir. let the soap sit 24 hours and it will gel. Use 1/2 cup per load.
For HE machines use 1/3 to 1/2 cup depending on load size. Works fine in cold water.
The cost of making this 2 gallon batch is under $2.00 The big manufacturers are making a killing!