If you're using Chrome (and I believe Firefox can do this too), if you go to the settings, there is a section for Users. You can add a new user to the browser and use that account for demo purposes. Our sales guys do the exact same thing.
Re:Ask HN: Idea Sunday
by flusensieb on Sunday April 06, 2014 @03:26PM
(#7542355)
You can use Firefox Profile Manager and create a new profile for demonstration purposes. ($ firefox -ProfileManager)
Incognito / private mode kind of solves this, but form autocompletes, and browser history when I enter a URL doesn't always contain stuff I want to show in front of my clients.