QR Code Ideas

I love the idea of QR codes when it comes to saving time and that is exactly what I would use it for. It also creates many short cuts and get s to student to the designated website. Both these reasons seem legitimate to me as to why I would use these in a classroom. HOW I would use it? To be earthly and save some trees! With QR codes by replacing things that may need to be printed out, etc. I love the idea of becoming "earth friendly" with them!