If you're like me and love printables, you'll love these free printable calendars.
Customizable Owl Calendar from the Owl Barn
This one has been around for a couple of years. I found it again via How about Orange.
Doodle Calendar from Creative Mamma
This one is super cute, and would be lots of fun to add to a planner binder somehow.
Pink Border Calendar from The Nest Effect
Free Birthday Calendar