Living Social offers a $50 Credit at VistaPrint for $10. That's among the best discounts we've seen for this photo services merchant. (We saw a $70 credit for $17 two weeks ago, since expired.) Shipping is not included and starts at around $4. VistaPrint specializes in photo books, cards, and calendars. This credit must be used in its entirety in one purchase by April 21. Deal ends January 20.