If you have a Shutterfly account, make sure to check your email inbox. I just received an email with the subject: Enjoy a set of FREE address labels. Dress up your envelopes. In it there was a code to get a free set of address labels ($9.99 value). Offer valid through 2/23. Shipping not included ($1.99).
I have to say Shutterfly is one of my favorite photo companies as they often send emails out with free offers. Although shipping is not included the quality of the work makes it worth it to take advantage of them.