Extreme Couponing Tip: Take Advantage of Coupon Swap Boxes!
Swap boxes are community boxes (or baskets) that allow you to donate coupons you don't need and take the ones you do. They can be found near the entrances of stores, libraries, community centers, churches, preschools/daycare centers, and more.
If there isn't a swap box near you, set one up! It's easy to do: get permission from the location, buy a basket (the Dollar store is a great option), label it "Coupon Swap Box", and add custom rules/instructions (i.e. take only what you need, do not donate printables or expired coupons, etc). To maintain the box, periodically take out expireds.