QuickBit is the quickest way to log activities and water intakes to FitBit. First, customize your panels with your most frequent activities (e.g. daily bike ride to work). The next time when you’re done with an activity, just open QuickBit and log it. Because your recurring activities are pre-configured, you don’t need to manually enter time, amount, duration etc. unlike the Fitbit App or Web App.
QuickBit is no longer maintained and remains unlisted from Chrome Web Store, but if you would still like to try it at your own risk, you can download it here.