Shave your bar of soap into a small bowl with a basic kitchen grater or knife. Use any type of bar soap you like and select a scented variety if you want the smell to remain on your clothes.
Add 1 cup of washing soda and one cup of borax.
Stir continuously until the ingredients mix and form a powder.
Store in a plastic container with a lid. The batch makes approximately 32 ounces. Use one tbsp. per load, although you can add another tbsp. for heavily soiled loads.
Grate a bar of soap into a saucepan. Add six cups of water and heat until the soap melts.
Add 1/2 cup of washing soda and 1/2 cup of borax. Mix well.
Pour 4 cups of hot water into a two gallon or larger bucket.
Add your soap, washing soda and borax mixture to the water in the bucket and add another gallon of warm water.
Add 1 oz. of essential oils such as lavender or orange to the batch if you want scented soap. Mix completely and wait 24 hours for the soap to form a gel consistency. Use 1/2 cup for each load of laundry.