I have had a few people PM me about how to do this. I thought it would be easier to put it here rather than typing it several times.
1 Quart boling water
2 cups grated bar soap (tip: to save more money ask friends and family to save soap from motels)
2 cups Borax (you can find this near the laundry soap)
2 cups washing soda (You can also find this near the laundry soap...if you can't find it you can sub baking soda)
Add bar soap to boiling water and stir till ALL of it is melted. Pour soap water into a large clean pail and add the borax and soda. Stir till completely dissolved. Add 2 gallons of water, stir till well mixed. Cover pail and use 1/4 c for each load of laundry. Stir each time you use it because it will gel.
One thing that I did was use old plastic laundry soap containers. This way I could just give it a good shake each time I used it.