Strategic shopping can save you more money than coupons

Buy produce and non-perishable items that are in season:
Focus on watermelon and berries in summer and citrus in winter
Canned soup, baking supplies, cold medicines, canned fruits and vegetables, baking supplies, and oatmeal are all cheapest in winter

Use what you buy and don't buy more than you need:
Freeze or re-purpose leftovers
Avoid overbuying and throwing away food
Check for expiration dates and consider the shelf life of products

Take advantage of store loyalty programs:
Get a loyalty card to access sale prices
Earn bonuses and discounts by using your card
Clip digital coupons and automatically apply them at checkout

Learn the sale cycles of your favorite products:
Pay attention to when your favorite products go on sale
Calculate the price per unit and stock up when prices are low

Ask about markdowns and find the store clearance rack:
Inquire about unsold product markdowns with department managers
Look for discontinued products in sale bins for additional savings

Try store brands.  You will find many are just as good as national brands. Walmart's Great Value canned veggies work for us!