I have been making my own laundry soap for about 6 years and not only is it super economical but it works really well and is great for people sensitive skin. I usually make 5 gallons liquid soap but It's a pain to store so I've found the powder to be perfect for me, here's the recipe.
Homemade Laundry Detergent, (Powder )
1 Bar grated Fels Naptha soap. (you can also use ivory bars)
1 cup of Borax
1 cup of Arm & Ham
mer Washing Soda
Grate the bar soap and mix well with Borax and Washing Soda.
Use 2 Tbs per load.
It will cost about 5cents a load.
Michelle / Simple Pleasures