Amazon offers the Arm & Hammer Laundry Detergent Plus OxiClean Power Paks 70-Count for $6.50 with free shipping via the steps below. That's about a buck below what you'd pay in-store locally for a similar quantity. To get this deal:

1. View the Arm & Hammer Laundry Detergent Plus OxiClean Power Paks 70-Count for $7.89
2. clip the $1 off coupon on the product page
3. order via Subscribe & Save for a final price of $6.50