Cookies are keeping us conveniently logged-in in all the daily services. E-mail, social networks and all the other sites. But sometimes you need to log-in with another user account Your additional gmail account. The statcounter for the other site. Or just another person using your pc. With Google Chrome's incognito you surf around all this. If you open your gmail incognito, you will NOT be automatically logged-in. Additionally you dont need to re-login later with your normal account. That is pretty convenient. No need to open different browsers, just right click on the link and choose "Open link in incognito window" or the shortcut key Ctrl+Shift+N