Use multiple browsers - This is probably the simplest way to solve this problem. Basically, if you’re on Windows, you’ll already have IE installed and you can go ahead and install Firefox and another browser like Safari or Flock. You can actually install all four if you want!
Each browser maintains their own settings, so you can have one Gmail or Google account logged into each different browser. Of course, the downside is you have to use different browsers, which you may or may not like. This method has worked out nicely for my situation since my wife likes IE and I love Firefox! Problem solved! I open my browser, she opens her browser.
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