You can also put other things on the calendar like important birthdays so that your kids can see the priority. (imom.com)
So to commemorate this important milestone we need to give something to the celebrant that would be utilized for a very long time and as a matter of fact, the most important birthday gifts for a child should be books. (ghanapoliticsonline.com)
Erin Condren's customizable event stickers fit perfectly, so I use them for important birthdays & holidays. (thehautehydrangea.com)