If you are the sort of Salesforce user who repeats many of the same tasks throughout the day, such as logging calls, or updating data on pages, this app could be a huge timesaver for you. Not built into Salesforce, but rather, as an extension of Google Chrome, this app allows you to create your own hotkeys (keyboard shortcuts) for just about any function on your Visualforce pages. There are even two kinds of hotkeys available, so you can adjust the hotkey based on your personal preference.
Instead of scrolling to the bottom of your account page to find the “add file” button, you can simply program a simple combination, such as ctrl + A, to do it for you. Try it out to boost your productivity.