I've been making our own laundry soap for years now but its taken me a while to tweak the recipe to get it just the way we like it without the use of Borax. Here's the combination I am finally very happy with...
1 bar of Dr. Bronners Castile soap grated
1 cup washing soda
1 cup baking soda
1/2 cup salt
I use about a tablespoon of this soap per load of wash in my HE front load washer.