It's very possible you already know this iPhone hack, but I only know basics and was pretty amazed when I discovered today's Life Hack for Life Hack Wednesday. I'm constantly creating screen shots to send to friends. No, i'm not catty and gossipy, I just run across funny things and want to send immediately. Screen shot! It's not like it's difficult to screen shot AS IS, but there is a quick, little hack that can make creating a screen shot as simple as double tapping the back of your iPhone! Here's a quick demonstration on how to set your iPhone up to do this!