Your final option with the Note 8.0 is the best and it uses the S-Pen. You can take a screenshot by pressing and holding the S-Pen button and then touching the screen until you hear the shutter sound. If you want to annotate the screenshot before saving, then..and hold the S-Pen on the screen with the button depressed. You can also press and hold the button, and then...an area of the screen to capture a specific section. If you want to annotate or edit your screen capture, you can choose an app from the pop-up menu and drop it straight in there.