Regularly priced laundry detergent costs from $.35 to $.50 per load of laundry. That may not sound like much to you until you consider that you can make your own detergent for about $.03 to $.05 per load.
Adapted from everydaycheapskate.com
Find a one-gallon container with a tight-fitting lid. Pour in the borax, washing soda and liquid Dawn. Add two cups of very hot water. Apply the lid and shake until the soda and borax have dissolved. Now fill the container with cold water. Reapply the lid, label and you're done. To use: Add 1 to 2 cups to each load of laundry depending on the size and soil levels. This recipe multiplies so well, make three gallons using this conversion which is slightly more concentrated: 3/4 cup borax 3/4 cup washing soda 3/4 cup original Blue Dawn