Super 1 Foods has the Catalina coupon machines at their registers. Every so often companies will contract with Catalina and grocery stores to promote their products. Sometimes you can get a coupon for so much off your next purchase when you buy a product. Other times, you may get coupon good for the product itself or even a free coupon product. In addition, some companies will give you a coupon when you buy a competitor's product.
Super 1 Foods lists the current promotions on their website. You can go here to see what is currently being offered.