If you have cats, you literally always need more cat litter. The more cats, the more litter you need. Right now, you can get 40% off your first order of cat litter, when you choose Subscribe & Save. This deal isn’t on just one brand of litter, though. You can get the deal on Fresh Step, Purina Tidy Cats, Dr. Elseys, Nature’s Miracle, Arm & Hammer, and more. You can get 40 pounds of litter for only $10. A no brainer!