Gmail Tip: Signing out of all Sessions

I'm not sure if I signed out from that other computer on campus! Help!

Normally, if you want to sign out of Gmail or Google Apps, it's just a matter of clicking on your email address in the top right of your screen and selecting Sign out.

But what if you have been on more than one computer and one of them was in a public location like on campus or in a library? What if you closed the browser but later realized you forgot to sign out of Gmail or other Google accounts? 

To sign out of all sessions go to any computer with an internet connection and do the following:

1. Open your Gmail account and click on the Details link at the bottom of your screen.
 
2. Choose to Sign out of all other sessions (it will leave you logged in your Google account on the current computer only).