I don't "Shop" at Walgreens but I do get my prescriptions filled here. On ocassion, I have browsed around the store while waiting on a prescription. I found some good deals while strolling through and gazing the shelves.
There ad circular that comes in the Sunday paper seems to always have several good deals. Most of the time when I go in to pick up some of these "sales" they are out of them. That makes me rather angry, but then I consider that it is a drugstore and not a mass merchandiser so their quantities surely won't be as large.