Update: Alive again!
Create or login to your account, upload a photo, and use the following code to make an 6 Premium 5×7 Photo Cards free (Exp: 10/27): PREMIUMSIX
The code may not work in the Walgeens App.
You can pick-up in any Walgreens store for free.
Be sure that you upload pictures in full resolution for best results, click on upload preferences and change to full resolution. You may also want to uncheck the color correct option.