To help you remember, print 12 copies of our birthday calendar template and put the sheets into a binder.
Preserve the sheets by encasing them in inexpensive sheet protectors. You can also keep addresses handy in the back of the binder; use a hole punch to insert a large envelope to store stamps.
Add tabs for each month for easy locating, and then add your completed monthly templates.
Lastly, add zipper pockets directly across from each designated month to store all your prebought cards neatly.