You can also make your own laundry soap…
* 4 cups hot tap water
* 1 Fels-Naptha soap bar
* 1 cup Arm & Hammer Super Washing Soda
* 1/2 cup Borax
Add 4 cups hot water to a small saucepan. Grate the Fels Naptha soap and add it to the saucepan. Heat over low heat until the soap is melted and combined with the hot water. Fill a 5 gallon bucket 1/2 way with hot water. Add the melted soap, Borax, and Washing Soda. Fill the bucket to the top with more hot tap water. Let sit overnight to thicken.
Stir, and dispense thickened soap into cleaned laundry soap dispensers (use empty containers from commercial brand laundry detergent): fill each bottle 1/2 way, then top the container off with water. Shake before use.
This liquid laundry soap recipe yields 10 gallons. For HE machines, use 1/4 cup per load. For top-loading machines, use 1/2 cup per load.