How to efficiently clear browser tabs on Google Chrome
On the top right of your Chrome browser, click the drop-down menu to reveal a list of tabs, and to be able to quickly close the ones you don't need by clicking the "x" next to each tab.
Or if you know you don't need a bunch of tabs, arrange the ones you want to the left, then click the right-most tab you need and right-click and "close all tabs to the right".