QUOTE
Just found out about Free Software Foundation credit card
(http://www.cardpartner.com/app/fsf).
Similar credit card program for Linux exists since ~ 2001 - 2002
(linuxfund.org).
So may be Wikimedia Foundation could be interested in similar program?
Just think of the advertising possibilities: "Jimmy Wales did it. Carolyn Doran did it. Now you too can run your personal expenses through your very own Wikimedia Foundation Credit Card!"