Always check you Sunday paper for coupons. There are usually alot of coupons in the sale section and as inserts. It's appropriate that they would be with the sale inserts. You can really save if you combine the sales WITH the coupons! Also, be sure to check your cash register receipts from your groceries. Sometimes grocers are putting coupons on the receipts now to get you to return to their store.
Look for the stores in your area that will double coupons for you. IF they only do it on certain days, well, you might want to change your grocery shopping day. It will be well worth it to you. You can get things either almost for free or outright for free taking advantage of double coupons.
Keep your coupons in your car. That way you will always have them with you. If you run into an unadvertised sale, you will be prepared. it would just figure that an item that you could have gotten for free will go offsale before you can get back to the store with your coupons.