Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity hacks, as well as household and digital decluttering, and oversees the freelancers on the sex and ...

Stop painting cells and use conditional formatting to build accessible, formula-ready, and automated Excel spreadsheets.

Are you tired of constantly sifting through your crowded inbox, trying to find that important email from your boss or a critical update from a family member? Microsoft Outlook offers a feature that ...

Some cultural debates are lodged into our collective consciousness: Beatles versus Stones, “Star Trek” versus “Star Wars,” Coca-Cola versus Pepsi. For New York City transit buffs, it's about which ...