I have been considering making some laundry soap. I found this blog at Flat Creek Farm and she is making and using this pretty soap. I am now convinced to try this.
1 cup borax
1 cup washing soda
1 grated bar of laundry soap, such as Fels Naptha, or Pink Zote
5 - 10 drops of essential oil
1 Tablespoon for a regular load
2 Tablespoons for dirty dirty load