1) Believe and make good use of Google’s native design: Doze and App Standby features

2) Remember to exit the service/process when you leave

3) Keep and only keep the necessary WakerLock

4) Optimize the App components

5) Choose resident background App carefully

6) Do not limit each other between the power-saving and acceleration Apps

7) Ultimate Method: Freeze

8) Unix Philosophy - “Do One Thing and Do It Well”