Enter their Fall Traditions Photo Contest - tag your photos to accumulate 20 points and you'll get a code good for a free planning calendar. 
http://fall.snapfish.com/
You can add up to four photos a day and by pulling up last year's Halloween pictures it only took me 4 pics to get to the 20 points. As a bonus 25 entrants can win a grand prize (though they're vague on the details of what exactly this grand prize is
). - ETA - Ooops, my bad. I found it the grand prize is a photo canvas.

http://fall.snapfish.com/
You can add up to four photos a day and by pulling up last year's Halloween pictures it only took me 4 pics to get to the 20 points. As a bonus 25 entrants can win a grand prize (though they're vague on the details of what exactly this grand prize is
