Walgreens introduced a new rewards program called Walgreens Balance Rewards. This program (at this time) does not replace Register Rewards HOWEVER, if you would like to get the 'sale' price at Walgreens, you will then have to sign up for their new Walgreens Balance Rewards.
Now, you'll not only be getting the sale price with your card but you'll also be earning points on your purchases. You can then 'cash in' those points for money that can be used at Walgreens on future purchases. For more information, check out the video below. Be sure to sign up, you don't want to miss the sales and deals!