Most users are already familiar with Maya's move, rotate, and scale tools and their associated hotkeys (W, E, R). But another transform tool exist that combines all three functions in one handy manipulator. This is the Move/Rotate/Scale Tool and is located under Modify>Transformation Tools>Move/Rotate/Scale Tool. Place this tool on your custom shelf or create you're own hotkey (mine is mapped to F7). Switching modes is now as easy as clicking on the appropriate manipulator handle; arrows for moving, circle for rotating, and the boxes for scaling.