It is important to browse deal sites and blogs specific to your region. There may be specific stores in your area that only have stores in one state or region. In Arizona these include Fry's, Basha's, Food City, AJ's, Sunflower, and Fresh and Easy. In addition, even the large chain grocery stores can have very different sales in different regions. Safeway, Albertson's, and Kroger (the parent company of Fry's) may have different prices and sales in various markets.
If you make your list based on prices found on a site out of your area, you may end up not saving the amount you thought you would.
Here is a list of the Arizona and Southwest (Arizona, Utah, Colorado, New Mexico) blogs I subscribe to in my Google Reader.
My favorite ones are printed in Pink. I subscribe to the facebook pages of these as well, so I get the most up-to-the-minute deals.
Arizona Grocery Guru
Arizona Shopping Secrets
Arizona Thrifty Mom
AZ Money Savin' Mama
Born 2 Save!
Clever And Crafty
Coupons In Overdrive
Desert Deals Diva
Living The Domestic Life
Michelle's Bargains and Freebies
Saving Cents with Sense
The Coupon Don
The Grocery Queenhttp://groceryqueen.blogspot.com/
There are probably many more AZ coupon blogs out there, but these are the ones I've found and liked enough to keep on my list so far.