Need a few cards? Shutterfly is offering a promotion right now: 5 free cards (pay only shipping and handling). Plus, if you go through ShopAtHome, you'll get 20% of your cost back.
[I'm not sure if the refund applies to total price paid or only to the subtotal.]
The code for free cards is CARD4GRAD. Also, the photo books are on sale for 20% off right now, and if your purchase is over $30 you can use SHIP30 to get free shipping.
This is what I just purchased - I've been waiting for a good deal!