Having to use the advantage card in order to get items on sale is just wrong. they want your infomation to put in a database and they follow all your purchases.
how secure is this infomation, a hacker could see you buying in a location not in your home zip code and use that to rob your home. I think people should boycott till they remove the manditory use of this card.
This type of data gathering is very dangerous to the security of you infomation in the name of a discounted purchase. Walgreens will use this infomation to target more advertising.