Great list. Thank you.
I'd like to add that Walmart has an app. It's called 'WM Photos' but I don't think (know) if you can have the photos mailed.
MIXTILES! Easiest way to get your Instagram pictures up on your wall without hammers and nails. They got this wallsafe glue that lets you move them from wall to wall if you want to. Pretty cool! I like the black framing too.
Associated Apps: MixTiles
Try @Printicular for iOS and Android. You get 25% off for a limited time when you use the promo code: PARTNER25 upon checkout.
Android app link: https://play.google.com/store/apps/details?id=com.meamobile.printicular&hl=en
iOS app link: https://itunes.apple.com/app/id570103834?mt=8&partnerId=30&siteID=vJCdkOKlzjg
Check out Rectangle in the App Store. They don't do any small prints, but rather focus on larger poster prints: from 9"x12" to 24"x32". They also offer Instagram integration and print "Pictoblocks" - great for gifts. Check them out: www.appstore.com/rectangle
Associated Apps: Rectangle -- Print Your iPhone and Instagram Photos!
sharakarasic
Great practical list! I notice so far this list has 16 shares on Facebook - great start.