[jdkram]

You can press Q while using cmd tab to quit that app entirely without leaving the cmd tab interface, which is a fast way of cleaning up at the end of the day / when project switching.

(apologies if this was _precisely_ what you referring to, but commenting in case you meant you then closed each app individually with cmd q, then returned to the cmd tab interface)

A few other shortcuts for cmd tab: http://osxdaily.com/2009/11/17/secrets-of-the-command-tab-ma...

And on the off chance anyone reading this in Windows is also jonesing for a shortcut for closing lots of apps quickly:

Ctrl alt tab: opens persistent app switcher Ctrl w: closes the current program