I read about this somewhere right before we went away and it came in handy on our trip. Suppose you are on the road and have no access to a printer, but do--of course--have your digital camera and a laptop. You simply take a photo of the screen you need with your camera and then play it back when you need to. You can zoom in on it because it's very small on the camera, but it is readable. Good to know in a pinch.