Stock up on Sale Items
If you're looking to save money without coupons, the obvious first step is to stalk the sales. Most grocery stores operate on a sale cycle that repeats about every 12 weeks, so make it your job to learn the patterns. Write a list of your most frequently used items and make sure you know when sale season is. Watch the flyers and circulars, and when it's time to buy, get enough to last you three months or so.