I used a jewel CD case, available at Wal**rt. Take the black piece out. Take the top flap off and turn it around and put it back on to make it stand up.
I made the calendar using the Picture It! program. I then cut and pasted the calendar from Picture It! into a Microsoft Word program so that I could control the page size and margins. I also did this so that I could print the calendars double sided to save paper and fit better into the CD case. Hope this helps.