So now that you have all the items you need for your coupon binder, you can start to add the coupons to your binder. Spread the trading card pages and alphabet or category dividers throughout the binder. Put each coupon in its own section on the trading card page. If you have more than one copy of a coupon, which you should, put all the copies in the same section.
These pages should contain all of your manufacturer's coupons. You should also start to collect store coupons. I don't recommend filing these in with the manufacturer ones. I use heavy plastic pocket dividers to not only separate off each store's coupons, but also to hold various coupons books and lists of the items I wish to purchase at that specific store.