Calendar templates are fun and easy to create.You can laminate them and write with a dry erase marker. It's a cute and inexpensive way to keep track of your family activities. If you know someone who has a lot of birthdays to keep track of, you can make a set of them tied together with ribbons or a metal ring and give it as a gift.
Nancy Stoltenberg makes calendars as Christmas gifts for the children each year. She has pictures of all the grandchildren, and all family birthdays are identified in the appropriate place.
Although I haven't made these (see pictures below) I love them because right now I'm into anything blended. You can find them at Scrapgirls here http://store.scrapgirls.com/scrapsimple-calendar-templates-11x17-blenders-2013-p26817.php
They also have lots of other calendars to choose from, but here are some samples of the blended ones. You use your own art.