I found these in the bagging area of the checkout stands.  They contain recipes and the following Safeway coupons:

Safeway Coupons valid 4/5-5/31
20% off All Waterfront Bistro Items
$0.50/1 Safeway Select Artisian French Bread
$1.00/1 Safeway Select Refrigerated Pasta and Sauces
$1.00/1 Eating Right Salad

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image courtesy of slickdeals

I wasn’t able to find this booklet, but it’s reportedly found in the lunch meat section and contains the following coupons:

Manufacturer Coupons which expire 5/14
$1.00/1 Kraft Mayo or Miracle Whip, 24 oz squeeze
$1.00/1 Grey Poupon, 10 oz
$1.00/1 Ritz Toasted Chip, any variety
$1.00/1 Claussen Pickles 20-32 oz
$1.00/1 Kraft Singles, 10.7 oz or larger
Safeway coupon:
$1.00/1 any produce item with $5 minimum purchase

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I also found this in the bagging area near register:

All Manufacturer Coupons.  Expire 4/25/10.
$1.00/1 Nature Valley Granola Nut Clusters, Any Bag
$1.00/1 Fiber One 90 Calorie Chewy Bars, Any Box
$1.00/1 Wanchai Ferry Frozen Entree, Any
$1.00/1 Chocolate Cheerios Cereal
$1.00/1 Original Bisquick (40oz+) or Bisquick Heart Smart Baking Mix
$1.00/1 Wheaties Cereal
$1.00/1 Fiber One Cereal, Any Box (Original, Honey Clusters, Raisin Bran Clusters, Caramel Delight, Frosted Shredded Wheat)
$1.00/1 Yoplait Delights Yogurt Multipack, Any
$1.00/1 Yoplai Frozen Smoothie
$1.00/1 Betty Crocker Warm Delights Bowls or Mini Bowls
$1.00/2 Nature Valley Granola Bars, Any (2) Boxes
$1.00/2 Chex Mix or Chex 100 Calorie Snack, Any (2) 4.5oz+
$1.00/2 Betty Crocker Fruit by the Foot, Fruit Gushers, Fruit Roll-Ups or Fruit Stickerz Fruit Flavored Snacks, Any (2) Boxes
$1.00/2 Betty Crocker Box or Pouch Potatoes (Except Potato Buds)
$1.00/2 Pillsbury Toaster Strudel Pastries, Any (2)
$1.00/2 Betty Crocker Cake Mix AND Frosting, Any Flavors/Varieties
$1.00/3 Hamburger Helper, Tuna Helper or Chicken Helper Home Cooked Skillet Meals
$1.00/3 Pillsbury Refrigerated Cookie Dough
$1.00/8 Yoplait Yogurt (Original, Light, Thick & Creamy, Whips or Light Smoothie), Any (8) Cups