Is the mouse really inefficient?
I hear keyboards are actually more efficient than using a mouse or touchpad. Below you will find a few Windows 8 keyboard shortcuts that might prove this theory.
Windows Key + D Will return you to your desktop super fast. Most useful when you get stuck on the start screen.
Windows Key + left or right arrows Snaps the active window to take up exactly 1/2 the screen. This might be the most productive shortcut I have ever used.
Windows Key + C Opens the charms bar.
Windows Key + X Opens a number of shortcuts. I use this to access the control panel and task manager.
Windows Key + E Pulls up Windows Explorer.
Windows Key + M Minimizes all open windows.
These are just a few that I use from time to time. Have a favorite shortcut? Add it in the comments.