There are lots of great deals posted each day. You need to learn how to search the Deals and Deal Stacking forums.
There are many offers for the national chains: Walmart, Target, Kroger, Walgreens, CVS, etc. Check the stores you have in your area and match up the rebates in Ibotta, Fetch, Swagbucks, Shopkicks and many more. If you don't shop these stores, your options are more limited, but there are still deals to be made.
Be sure to check this site before you go shopping. I even check while I am in the store. New deals are posted all the time.