Sometimes what you're doing on your iPhone is just so amazing you have to save it forever. Lucky for you, your iPhone (or other iDevice) has a built-in shortcut for saving screenshots to your camera roll.
All you have to do is hold down the lock button and the home button at the same time for about one second and your screen will flash white. This is to signify a screenshot has been taken. Now you can head on over to your Camera Roll and check it out or save it for those times you want to relive that important memory.
Watch the video for an awesome demo!
Shortcut of the Day highlights a great shortcut on various platforms from the desktop to mobile devices to the web. You can find more shortcuts here.