Shutterfly has a couple of coupon codes going on right now:
For two days only, use code SPOOKY to get 101 free prints! Shipping is $7.49 which makes it $0.07 per print. Hurry, this code expires Friday, November 2nd.
Through Sunday, use code BOOK50 to take 50% off all hardcover photobooks.
Go here to order your books and prints! Note: before putting a lot of work into designing a book or uploading prints, I recommend putting in a “dummy order” and making sure the coupon code works as you expect.