Purchasing Arm & Hammer baking soda? Be on the lookout for specially marked boxes like the ones on the picture.
They have a special form and code for you to score a 1 year subscription to Better Homes & Gardens for free when you purchase 2 boxes.
They are 99 cents at Winn Dixie. You might find the specially marked boxes cheaper at another retailer.
Go here for assorted Arm and Hamm