A tool I've found eye-opening is https://www.rescuetime.com https://www.rescuetime.com which measures and graphs where you spend your time at the computer. The

A tool I've found eye-opening is https://www.rescuetime.com https://www.rescuetime.com which measures and graphs where you spend your time at the computer. The Battery Usage statistics on iOS are also helpful, if not as granular. Once people have awareness of how they spend their time it becomes easier to make an informed decision.