I currently use these three organizers for my couponing. The little binder came from Dollar General 6 years ago - it's about to fall apart but I keep taping it back together! It's a handy little tool that I always take with me shopping!
This coupon organizer has categories to store the coupons. I then sort my coupons within the category so all of one type of coupon is together. Example: Dental care, hair products, etc. The blue folder holds store specific coupons and rainchecks along with a slot for Free coupons. I usually sort out my coupons for a shopping trip and place them all in the compartment for that store.
I use this black recipe box to organize my extra coupons. I have it labeled and store coupons that I rarely use and extras... my little coupon binder was busting at the seams until I added this. It's been great to have so much room for my coupons. I can cut out all coupons just in case and have plenty of room to store them.
Currently this system works for me. I like that I only take the small binder and small folder to stores and leave the file box at home. It's somewhat hard to juggle coupons, shop and entertain a toddler. :) Check out Part 1 of my coupon organizing here.