Homemade Laundry Soap

I made up a batch of laundry soap this morning. It is a simple recipe:

4 cups Baking Soda
3 cups Borax
2 cups soap, grated (such as Castile or homemade soap)
1 tbsp essential oil of choice (lavender, citrus, vanilla, etc.)

Mix all ingredients together and store in an air tight container. To use, add 2 tbsp per normal sized laundry load.