I use the same recipe that's floated around the blogosphere for a few years. Try the HowDoesShe recipe: http://www.howdoesshe.com/cheaper-and-better-diy-laundry-detergent/ . I just leave out the Purex, and I ALWAYS use Fels Naptha instead of Zote. Zote can leave a nasty film in the washer. Fels Naptha also seems to clean laundry a bit better, to me.