I'm going through my hanging files and tossing out my old coupon inserts. I figured some of you might be in the same boat as I and I thought that I might be able to speed the process up for you.
I've found the coupon insert list over at CouponsDealsAndMore to be most helpful. Scroll down to the bottom of the post to see the oldest inserts first. Then work your way through your coupon files, pulling any inserts that no longer have valid coupons. If you need the extra room in your file, you might consider cutting out the 1 or 2 coupons that are still valid and filing them away with your other loose coupons.