Meet PhotoAffections. Also known as Free Prints. Meow. Or since I really don't like cats- Woof.
Pretty much it accesses your iPhone (or I guess any phone's?) camera roll. You click the pictures you want to print, and you're practically done! The only catch is you pay shipping. BUT no more than $9.99. You get up to 80 something free 4x6 prints a MONTH. I ordered about 50 and paid around $7 for shipping. Shipping is calculated based on how many photos you order.
It's more expensive to go this route than a photocenter like Walgreens or Walmart, but since it pulls them RIGHT OFF MY PHONE, it was totally work the extra $$! And I'm sure this isn't the only app to do this... but it's the one that
I was absolutely thrilled with the quality when they came in the mail! I went ahead and printed the last half of last year's pictures so I can finish my 2013 Project Life binder! And I see myself using this easy app to keep up with pictures throughout the year! iPhone pictures were the one area of photo organization that I just hadn't nailed, but the 4x6 quality is phenomenal! And you know I wasn't perked or paid to talk about this. Just passing on a great product when I find one!