Arm & Hammer baking soda has been capturing unpleasant odors in refrigerators for decades, and you can save on all of their products shopping with these manufacturer's coupons. They feature a number of household items you can find at your favorite grocery store including laundry detergent, toothpaste, antiperspirant and even kitty litter. Keep your life fresh for less when you shop with any of these Arm & Hammer coupons.