My favorite supermarket chain in Southern California is Gelson's, which is aka as Mayfair's in a few locales. They're very clean, well-stocked markets staffed with bright, friendly people. I go to other markets occasionally because there are a couple of items I need/crave that Gelson's doesn't have on its shelves and that's when I really appreciate the difference.
Our favorite chanteuse Shelly Goldstein informs me that Gelson's is currently running a "welcome back" special for members of the Writers Guild of America. Now through the end of April, show your WGA card at the checkout counter and they'll take a big 15% off your tab. I can think of a couple of friends who'll be very, very happy at this news. Heck, I'm even happy about it.