Add Yahoo as a preferred source to see more of our stories on Google. That split-second glimpse you get of someone's lock screen when someone checks the time or swipes away a notification—it tells you ...

One tweak reshaped my daily habit ...

Michelle is Lifehacker's Associate Tech Editor, and has been reviewing games, laptops, phones, and more for over 10 years. She is based in New York City and holds a master's degree from NYU. That's ...