Oxi Clean Detergent on sale for $3.9 at Walgreens. There is also a $1.50/1 Oxi Clean White Revive Coupons available. You can get Arm & Hammer Detergent for Free at Walgreens after coupon and TRY ME Rebate on the bottle.
Here is how:
Buy (1) Arm & Hammer Detergent $3.99
Use (1) $1.50/1 Oxiclean White Revive Laundry Stain Remover, exp. 11/2/15 (SS 09/27/15)
Try Me FREE Rebate (on bottle)
FREE after rebate!