Your web browser could be the culprit, especially if you've lost count of the number of windows and tabs you have open. Each ...

Most long-time macOS users will be aware of the Application Switcher. It's invoked using the Command+Tab keyboard shortcut, and lists all of the apps currently running on your Mac, enabling you to ...

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 ...