Whole Foods deals thread + Mambo Sprouts coupons
Sales for Whole Foods stores are regional, although they seem to have some national deals on grocery items(canned and packaged foods). Sales tend to run on 2 and 4 week cycles, and new cycles tend to start on Wednesdays. They also tend to have regional sales, that run on the weekends or may also run on 2 week cycles(the "Madness" sales in the Northeast) that tend to feature regional deals like produce, meat, prepared food, bakery etc.
Your best bet to find out what's on sale at your local store, is to go to your store's website, which is located at www.wholefoodsm
One aspect of Whole Foods is that the stores tend to have a lot more "events" than a conventional supermarket. These can be promotions, contests,
sampling events, cooking classes. If your store calendar isn't posted online, there is always one at the store entrance. And while many of these promos are not worth a separate trip(though I have gotten some nice sample packs at times), if you are going to the store anyway, why not go when they are giving something away?
Whole Foods also distributes a coupon book in store, called "The Whole Deal". These are store coupons and are will NOT scan at other retailers, despite the bar codes. You should be able to combine them with a manufacturer coupon, but YMMV.