Mac OS X doesn’t offer the ability to automatically maximise a window to fill the screen, which can be very frustrating if you prefer to work without distractions (and doubly so if you’re on a notebook with a relatively small screen and have come from a Windows background). Free utility RightZoom solves that problem, changing the green window control from “expand to appropriate size” to maximising to the full width and height of the screen (less the Dock).