I love shopping there, as well. I wish the ones here on the East Coast were as big as the ones I've seen in San Franscisco. I have friends that live out there, and they are SO LUCKY!!! They've got all kinds of stuff we don't have here, like way more (and better) unrefrigerated fresh produce.
But...
The cheese is fantastic... I wish they had more low-fat varieties, but the ones they do have are good.
Ground beef patties (90% or better)
Pita bread
Tortillas (they had, for a very short time, awesome low-carb ones!)
Cereal (the oatmeal!)
Protein shakes and stuff to make them (again, I miss the coffee flavored low-carb ones they had which were like a Starbucks Frap in a bottle)
Snacks
Frozen: I love the shrimp! I eat shrimp a lot for lunch, and this makes it so easy, because Ijust throw the frozen shrimp in a bag and its thawed by lunch.