18+ Uses for Washing Soda | Wellness Mama
Add 1 cup washing soda. Remove all blinds and soak for 30 minutes. Spray or wipe down and re-hang. (From experience, make a note of where they all go before doing this!). Alternately, dissolve 1/4 cup in 2 quarts of warm water and use to wipe down blinds while they are still hanging.