Announcing a feature that's lo-o-ong overdue, which should work with all Google accounts, and on the same browser... Login to multiple Google accounts at the same time Google Ads
Oct 30, 2014 https://plus.google.com/+GoogleAds/posts/ZwCiK6eg95X
...we’re introducing a new, simplified workflow that allows you to toggle between multiple Google accounts without having to log out and back in again. With this update, you can now:
+Manage multiple AdWords accounts simultaneously in the same browser
+Stay logged into multiple AdWords accounts or other Google accounts at the same time
+Save time switching between accounts with different logins
I'm quoting the official Google post above... and thanks to Matt Southern for reviewing and expanding on that post in SearchEngineJournal [searchenginejournal.com
...] ...and to Duane Forrester for spreading the word.
As Matt points out, this was originally a Google AdWords announcement (which is why I'm posting it in this forum), but it should apply to all Google accounts.
For those who've bought extra computers to handle the workflow, the big hassle is over.