What you need:
Binder (mine zips, has file folders in the front to keep store coupon policies and has a handle), Baseball Card Holders, Plastic Sleeves, Dividers, Scissors, Pen, Small File Folder, and Calculator (not shown)
I use the small coupon file to put all the coupons for that days shopping trip in (that way they are all seperated and ready to go). I do take my binder in with me in case of an unexpected deal but this helps me to be more organized when getting ready to checkout.
I seperate my coupons into categories in baseball card holders with the expiration date facing out so I can easily see and remove expired coupons.
Here are the categories my binder is divided by:
Dairy, Canned, Snacks, Frozen, Breakfast, Noodles/Bread, Meat, Baking, Refrigerated, Drinks, Medicine/Vitamins/Bandages, Oral Care, Skin Care (Soap/Lotion/Make-up), Shaving, Cleaning Products, Laundry, Dishes, Paper Products, Random Coupons (Toys, Office Supplies, ect..), Kitchen Supplies (Ziplocks, Tupperwear, Garbage Bags, ect..), Pet Food, Store Specific and I have a plastic sleeve in the back that holds all the restaraunt, car maintenance and clothing store coupons.
When I started my binder I seperated it into grocery items in the front and non-grocery in the back but my category order just kind of developed over time and there is not neccesarily a reason why dairy is first, ect..
I hope you enjoyed a look at my organization system, I would love if anyone wants to share their system with us as well.