Amazon Prints discounts its custom holiday cards to 35 cents per card via coupon code "BFPRINTCARDS". That's a savings of 40 cents per card. Plus, Prime members qualify for free shipping. (Prime members get free expedited shipping on orders of $15 or more. Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping starts at around $4.) All cards include envelopes with free return address printing. Deal ends November 26.