Just a quick note about the print off. I designed it so that even and odd numbers are printed on different colored paper and then joined together in a chain.
Also, when you print off the pages you need to print 1 on the back of 2, 3 on the back of 4, 5 on the back of 6 and 7 on the back of 8. You may have to play around with your printer to get it to print right. What I do is make a tiny mark on the first sheet I am printing and then when I go to print the second page I flip over the paper but make sure the mark is on the same side of the printer tray. This way you know your page will go in the same direction and print on the opposite side.
Hope that helps and have a wonderful Advent celebration!!!!!