I’m not telling you anything new when I say groceries are expensive. Whether you’re a Whole Foods aficionado or a Market Basket girl, you’re probably spending more than you would like on your monthly grocery bill. There are plenty of ways that you can save money. You can shop the sales, clip coupons, or hit several stores rather than do all your shopping in one place (provided the savings aren’t canceled out by an increase in gas station stops). One way of saving money that I’ve found to be among the most efficient and convenient ways I’ve tried is apps. If you have a smartphone, you can download all of these apps for free. Just be sure to hang onto your receipt!