Grate a bar of soap. I used Ivory but plan on trying Mrs. Meyers Basil scent soon.
Add 1 cup of borax and 1 cup of washing soda. I found the washing soda in the cleaner section at my grocery store. You may have to shop around to find it.
Mix well for 1-2 minutes to get it well combined.
Store it in an air tight container. Use 1-2 tablespoons per load.
You may not need dryer sheets. I find that I don't. Test a load to see.