The first way to save big involves shopping all of your neighborhood grocery stores, not just your usual favorite. Pluck those grocery sales flyers out of the newspaper each week. Go through each one and plan your menus around what's on sale this week, rather than planning your menus first. The sales vary weekly, so your menus will be automatically diverse. If one store has the best produce, visit that store and shop their produce sales. Apply the same technique for meat. Coffee is another good example. You can save up to $3 for a large can by stopping by the store you dislike, but which has coffee on sale.