Close all the tabs you no longer need in just one keypress.
Open Tab Star in Chrome Web Store and click "Add to Chrome".
- All unstarred tabs can be closed in one keypress
- Starred tabs are persistent across sessions, even upon browser crash
Press Ctrl/Cmd+Shift+S to toggle star for current tab and Ctrl/Cmd+Shift+X to close all unstarred tabs. Alternatively, at the bottom of the Chrome Extension page, there's a "Keyboard shortcuts" option where you can change the Tab Star shortcuts to anything you like.