Walmart offers the Arm & Hammer 2-in-1 Laundry Detergent Power Paks 97-Count Bag for $8.71. Choose in-store pickup and it drops to $8.27. (Amazon charges the same via Subscribe & Save.) That's tied with our mention from a week ago and about $3 under what you'd expect to pay at other local stores.

Update: The Walmart item is out of stock; however, Amazon offers it at the lower price of $7.87 with free shipping via Subscribe & Save. Be sure to cancel your subscription once your order ships to avoid being billed for subsequent shipments.