It pays to be a little older and wiser. On the first Tuesday of every month, Walgreens offers customers 55 and older a discount on most in-store purchases. (Proof of age may be required, so bring a photo ID. Plus, the offer is only valid with its Balance Rewards program.) On Senior Savings Day, qualifying customers save 20% on all regular-price merchandise. The program has changed. The discount no … [Read more...] about Save 20% on Walgreens’ Senior Savings Day