This is the detergent blend that we have been mixing at home. We use a cup of Borax and Washing Soda to every Fels Naptha bar and bar of soap. I feel like it gets the clothes clean, without any weird residue and is so incredibly cheap! GirlChild doesn't mind working the bars over a cheese grater that we have dedicate to detergent making.
All of there ingredients are found in the detergent aisle.