Walmart.com discounts a wide selection of Tide Simply Clean & Fresh Laundry Detergent, with prices starting at $3.97. Opt for in-store pickup to dodge shipping fees, which start at $4.97. A couple best bets:
-- Tide Simply Clean & Fresh 40-oz. Laundry Detergent for $3.97 (lowest by $8)
-- Tide Simply Clean & Fresh 138-oz. Laundry Detergent for $8.97 (pictured, lowest by $16)