You can buy coupon binders and the specialized accessories needed to build them at major retailers like Amazon and Walmart , as well as through hobby-specific brands like Ultra PRO and Case-it . For "extreme couponers," the most effective system is often a custom-built 3-ring binder rather than a pre-made accordion file, as it allows you to see all your coupons at a glance using clear plastic sleeves. Extreme Couponing Tips: Coupon Binder Category Labels