Costs $8.36 and yields about 96 loads.
What You'll Need:
1 5-ounce bar eucalyptus castile soap such as Dr. Bronner's ($4.69; drbronner.com)
2 cups borax ($2.08; amazon.com)
2 cups Arm and Hammer Super Washing soda (94¢; walmart.com)
1 cup Arm and Hammer baking soda (32¢; walmart.com)
20 drops peppermint essential oil (28¢, gnc.com)
10 drops eucalyptus essential oil (5¢, gnc.com)
Grate soap finely (it will yield about 1 and 1/2 cups). Mix ingredients in a clean garbage bag to minimize mess and to ensure the detergent is completely combined.
Put soap in the washer's dispenser or drum: 1 tablespoon for HE machines, 2 for regular machines.
Keep in a 1-gallon airtight container for up to three months.
Unscented: Use unscented soap. Don't add any essential oils.
Lemon and clove: Use citrus-orange soap plus 20 drops lemon and 10 drops clove essential oils.
Lavender and orange: Use lavender soap plus 20 drops lavender and 10 drops orange essential oils.
Don't have time to grate by hand? Cut the castile soap into two or three chunks and grate in your food processor instead.
Recipe courtesy of blogger: Becky Rapinchuk from Clean Mama