Amazon offers the Arm & Hammer Laundry Detergent Plus OxiClean Power Paks 97-Count in Fresh Scent for $10.99. Clip the $1 off coupon to cut the price to $9.99. (Target offers it for a little more via subscription.) Plus, Prime members receive free shipping. (Non-members can spend $49 to qualify for free shipping; otherwise, shipping costs $7.02.) That's the lowest total price we could find by $4. It's designed for use in all machines.