In Picassa, I created a photo collage with 25 photos (8X10).
I decided on landscape, but portrait style could be used as well.
Once I was satisfied, I printed the photo collage on glossy 8X10 photo paper.
Then I picked a photo for the calendar to display when the photo windows were closed (I chose a photo of our house).
Next I printed the photo of our house on glossy 8X10 photo paper.
Then, I allowed the photos to dry.
Next I took a sheet of tracing paper and a ruler and decided on different size openings for each photo and what side the photo doors would open.
I alternated the openings randomly R, L, and top.
I drew straight lines for where I would use the exacto knife and dotted lines to serve as folding lines.
Next, I cut out the windows and numbered each with a paint pen.
Finally, I tapped the photo with windows onto the photo collage.
Result: Personalized Photo Advent Calendar
(Due to privacy, I will not upload any pictures of this project - thank you for your understanding).
Thank you for Picassa for assisting in this cool project/gift for my family.