REMEMBER.....................coupons are not just for grocery stores. Department stores, drug stores, restaurants. They all have coupons sometimes. (Some have something going ALL of the time.) I average 75-80% off of my groceries every time I shop. I also am a secret shopper, so many of my shops are for grocery stores. They pay me and then give me from $10 to $20 to spend at the store. So If I use coupons and their money, most of my groceries are free. (BUT YOU HAVE TO BE CAREFUL WHAT SHOPPING COMPANIES YOU SIGN UP FOR, THERE ARE A LOT OF SCAMS OUT THERE). Several of the grocery stores in my area right now are hooked up with gas companies, you buy your groceries and can get a discount ($0.10 per gallon) on gas. A lot of places, especially gas stations will offer you up to $0.10/per gallon off if you will pay cash. I always run by an ATM before I get gas anymore.
cloudsoup..........the more you do couponing the easier it gets to get good savings. If you use your store loyalty cards you can get coupons off for meat and fresh vegetables. Things like laundry soap, cleaning supplies, save your coupons and only buy on sale, then you won't have to pay $10.00 for soap. Most of the time I get mine for free or very close to it with coupons and sales.
Also, do the mail in (or you can usually do on the computer) rebates. I just got 8 reams of paper from Staples for $0.25 per ream after the rebate. The check got back to me in about 4 weeks.