Along with today's giant update, there is a new addition to the Square Enix Shop: Final Fantasy XIV business card holders.
Themed after Diligence, Constancy and Valor, these cases are hold up to 20 cards and are priced at $34.99 each. I don't know about the "Collect all three, and fulfil your duty to the realm!" tagline, but if you have use for a card case, Square Enix makes some pretty solid ones.
I have used their Final Fantasy VII Shinra, Dragon Quest slime and Final Fantasy XIII L'Cie cases, usually picking up a new one on each trip to the Square Enix store in Tokyo. The cases are well-made and the designs are always of high quality -- so consider that a recommendation.
Discuss this in the ZAM Forums!