Purex laundry detergents are on sale this week at Walgreens, buy one get two free! The Walgreens coupon policy doesn’t allow a coupon to apply to a free item, so use one coupon from Sunday’s Red Plum newspaper insert. Although the coupon has the Family Dollar logo on it, it is still a manufacturer coupon. It does not say, “Redeemable ONLY at Family Dollar,” so it can be used at Walgreens. Pay $1.83 per detergent!