JCPenney Portraits with Arm & Hammer offers a free photo session for your cat and a free 8" x 10" portrait with the purchase of any Arm & Hammer or Feline Pine cat litter. (You'll need to bring in a receipt of your purchase and mention promo code "PC1811891" at your photo session.) That's a savings of $25 and a cool freebie considering you're likely purchasing cat litter anyway.
Note: JCPenney, as far as we know, doesn't sale cat litter; you'll need to complete that purchase in another retail store. You can also add yourself or another cat to the photo session for an extra $9.99 per additional subject.