Google made screenshots in Android Marshmallow much more simpler. So if your device is running on Android Marshmallow, then you got to try this. So you no longer need to press down the volume down button and the power button together for taking a screenshot.
Now there will be a new icon which lets you take a screenshot and share it.
This feature will be very useful for Nexus 6P with Google case users. You can update to Android Marshmallow from Google Store is you haven’t updated yet. The one tap feature will be a lot simpler.