Gmail's "Labs" features, brought to you by the experiments of Google staffers, is one of our favorite parts of the webmail service.
While some Labs features, such as the great Mail "Beer" Goggles are fun, others can seriously up your productivity levels with time-saving shortcuts, clever tricks and useful add-ons.
To activate Gmail Labs features and choose the ones you'd like to use, click the settings icon in the top right-hand corner of Gmail and select Labs.
We're highlighting eight great Labs options that will speed up your Gmail experience. Check out the gallery below, and if you're looking for some "vanilla" Gmail tips, tricks and shortcuts, we've got you covered there, too.