I worked on my 2012 calendar today. I have been making personalized calendars since 1998. The early versions had either family photos or copies of some of my paintings. Back then I ordered calendar kits and printed and assembled them myself. Those were also the days when I hand-painted my Christmas cards. The volume of each was very small. Thank goodness for the availability of online printing!
Each year, when I begin the photo selection process, I realize that I am more likely to compose a shot in portrait mode than landscape. Since I prefer calendars to be in landscape orientation, finding twelve images (thirteen with the cover) is not so simple. And every year I tell myself that next year... the calendar will have to be in portrait mode.