Shutterfly has a couple promotions going on now, valid thru Wed 1/6/10. Get 75 free prints by entering the code PRINTS2010 in your account special offers. Also try CALENDAR2010 for a free 12 month calendar. Both offers may be account specific, but I have a lot of friends with accounts that you can use if you want to make a calendar and transfer it an account where the code is valid. Just make your own calendar in your account and "share" it with my email.
Anyway, I've been watching for free calendars for a while and they haven't had this kind of offer all year. Too bad they didn't put it out about 2 weeks ago...