This week, Walgreens has the Arm Hammer Laundry Detergent 43.75 or 50 oz. or 17 or 21 pk. on sale for $1.98 and after using the following coupons, you can get the detergent for just $0.98!!!
If you are closer to CVS or Rite Aid, they have the Army & Hammer laundry detergent on sale for $1.99.