The first year I made these calendars, I focused around photographs I had taken that year, that I had really enjoyed. I think my family liked it, but I moved on to use photos of family members throughout the years. I've also gone from using one traditional photo per month, to including about a dozen shots each month. I think this is more enjoyable for everyone - especially now that a lot of my siblings are having children. My sister posted a video on Facebook of her daughter pointing out her aunts and uncles in the family calendar I made last year, which completely melted my heart.
I've contemplated getting these calendars done professionally every year, but I find that it's not a financially smart decision for making twelve calendars. It's about a hundred dollars cheaper to take the time to create my own calendar (which I simply do in iCalendar on my Mac, where I put in everyone's birthdays, different holidays, and the full moon schedule each year) and print off my own Adobe Illustrator files of photographs. My only costs are my time, a pack of card stock paper, a couple cartridges of printer ink, and the process of binding at an office supplies store. I print the calendar on one side of a sheet of card stock, then flip it around and print off the photos. It takes a lot of time, and patience, but it's worth it to me. My mom has a binding machine that I've used in the past for my calendars, but this year I decided to knock the whole process out before we went home for the holidays. My local Staples store was able to bind my calendars within a day, and they even included a clear plastic sheet on the front and a black linen covering on the back.