As part of our quest to reduce our family's exposure to harmful compounds, as well as use products that are less harmful to the environment, I've been looking for ways to make my own laundry soap. After hunting around a bit, I've found a simple enough recipe that I'm going to try this week.
1 cup of pure soap (like Sunlight) grated
1/2 cup washing soda (sodium carbonate)
1/2 cup borax (Careful handling this, it is an irritant and is slightly toxic).
This recipe is based on this Instructable.
If you try it, let me know how it goes.