Picaboo offers $100 Credit for Photo Books, Cards, and Calendars for $30. That's tied with our January mention as the best deal we've seen from Picaboo. (We saw a $50 general credit for $20 on Black Friday.) The credit isn't valid on shipping, which starts at $6.99, and must be used by December 30. Some exclusions apply. Deal ends May 10 at 3 am ET.