You can increase your grocery savings greatly with a well-planned use of coupons. Combined with an overall shopping strategy, you can save hundreds of dollars every month.
To maximize your savings on groceries, the first step is to start building up a well-stocked pantry. A well-stocked pantry enables you to shop only for bargains during your weekly shopping trips. You can build up your pantry by stocking up on non-perishable groceries that are on sale, buying a little bit (or as much as you can afford without stressing your grocery budget too much) each week. This will raise your grocery bill for a few months until you are well-stocked, but the long-term benefits outweigh this cost in the end.
Once your pantry is full, you can concentrate on maximizing the benefits of coupons. One way to go about this is to choose on grocery store as your main shopping place. Choose a store that has overall consistent deals, regular sales, a weekly sales flyer with loss leaders, and some type of rewards program. For example, my main grocery store is Fred Meyer. They have a point system, where I earn points, which can translate into special deals, like coupons for specific products, and regularly-occurring coupons for money off my total shopping bill. They also have store coupons, which are important for combining with manufacturer's coupons.
The goal is build up savings potential by shopping at one main store. Of course you don't want to use one store exclusively, you should keep an eye out for good deals at other places as well.
In order to maximize grocery savings, it's important to use your coupons to their utmost benefit. Start by building up a collection of good manufacturer's coupons. You can find these in several places. The Sunday paper, with it's Smart Source and other coupon inserts is one place to find them. You can also check food packaging, magazines, join a coupon exchange group, buy them on Ebay, or ask for them directly from the manufacturer.
Once you've collected your coupons and organized them in a way that's easy for you to find them when you need to, you can start to use them in your weekly grocery shopping trips. Every week, get all the weekly sales flyers for the stores in your area, and look for good bargains. Match relevant coupons with bargains at each store. Many stores will let you use a store coupon with a manufacturer's coupon, and this is one of the best ways to save money. With this method, it's even possible to sometimes save more than the product even costs, making you a little bit of money, although this is rare. Match coupons with rebate deals for the same effect.