For a limited time (or while supplies last), enter three codes here to receive an offer valid for a FREE $20 Shutterfly.com credit. This code will be delivered via email only (mine came immediately!) and expires on December 31, 2013. The code is good for $20 off one qualifying order of 5×7, 4×8, 5×5, 6×8 flat stationery, folded greeting cards or flat photo cards of $20 or more (after any other discounts and before taxes, shipping and handling).