C.
I too use plastic accordian files that I got in the Target $1 section a while back. I use a big one (size for regular sheets of paper) and sort out the coupons when I get them between misc. (things like Linens and Things, haircuts, outings), restaurants, groceries, dog/portraits, toiletries and meds, cleaning and supplies (supplies like batteries and paper towels), and diapers/baby. Then I have the little one that I take with me that I divide by store. I labeled them with stores I go to most often and in the front goes any atypical store I have coupons for that I need to go to that week. I shop by ads, so I put the coupons that go with the store in the correct slot and then just pull them out when I go into the store or take the little binder with me. To weed out expired ones, I go through them monthly and throw out the expired ones. Works well for me. :)