You might think simple Sunday morning coupon-cutting sessions get you most of the good deals out there, but there are more aggressive ways to go about collecting coupons if you want to get extreme savings.
Don't settle for one newspaper. Get weekend subscriptions to several (provided they carry quality ads and aren't too expensive). You can also ask friends and coworkers to give you any ad inserts they aren't planning to use. Local businesses might let you have any unsold Sunday papers they have leftover come Monday. Multiple copies mean multiple coupons.
Don't forget online resources, either. Lots of Web sites have printable coupons, so surf those sites regularly. You can also look for promo codes to use during online transactions, and you can sign up for daily deal alerts from a variety of Internet sources.