Living Social offers a $50 Credit at VistaPrint for $10. That's $40 off and tied with a deal from a month ago as the best discount we've seen for this photo service merchant. VistaPrint specializes in photo books, greeting cards, business cards, and calendars. This credit must be used in its entirety in one purchase.

Note that although this is listed under Living Social Atlanta, it can be purchased and used by anyone. However, it can't be shipped to NY or NC.