From the old days from when I supported Microsoft Mouse, I had to learn how to get around the screen just using the keyboard. Windows 8 has a number of new shortcuts for me to learn. Here is a list of the ones that use the Windows logo key.

I like to break out this list every now and then to find a shortcut that I had not been using and try it out to see if it helps my productivity.

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Open Windows Help and Support

Display or hide the Start screen

 +B

Set focus in the notification area

 +C

Open the Charms

 +D

Display and hide the desktop

 +E

Open Computer

 +F

Open the Search charm and search for files

 +G

Cycle through Gadgets on the desktop

 +H

Open the Share charm

 +I

Open the Settings charm

 +J

Switch the main app and snapped app

 +K

Open the Devices charm

 +L

Lock your PC or switch users

 +M

Minimize all windows

 +O

Lock device orientation

 +P

Choose a presentation display mode

 +Q

Open the Search charm and search for apps

 +R

Open the Run dialog box

 +T

Cycle through apps on the taskbar

 +U

Open Ease of Access Center

 +V

Cycle through notifications

 +Shift+V

Cycle through notifications in reverse order

 +W

Open the Search charm and search for settings

 +X

Open the Quick Link menu

 +Z

Show the commands available in the app

 +, 

Temporarily peek at the desktop (I love this one.  I use it all the time)

 +Pause

Display the System Properties dialog box

 +Ctrl+F

Search for PCs (if you're on a network)

 +Shift+M

Restore minimized windows on the desktop

 +number

Start the desktop app pinned to the taskbar in the position indicated by the number. If the app is already running, switch to that app.

 +Shift+number

Start a new instance of the desktop app pinned to the taskbar in the position indicated by the number

+Ctrl+number

Switch to the last active window of the desktop app pinned to the taskbar in the position indicated by the number

 +Alt+number

Open the Jump List for the desktop app pinned to the taskbar in the position indicated by the number

 +Ctrl+Shift+number

Open a new instance of the desktop app located at the given position on the taskbar as an administrator

 +Tab

Cycle through open apps (except desktop apps)

 +Ctrl+Tab

Cycle through open apps (except desktop apps) and snap them as they are cycled

+Shift+Tab

Cycle through open apps (except desktop apps) in reverse order

 +Ctrl+B

Switch to the app that displayed a message in the notification area

 +Up arrow

Maximize the desktop window

 +Down arrow

Minimize the desktop window

 +Left arrow

Maximize the desktop window to the left side of the screen

 +Right arrow

Maximize the desktop window to the right side of the screen

 +Home

Minimize all but the active desktop window (restores all windows on second stroke)

 +Shift+Up arrow

Stretch the desktop window to the top and bottom of the screen

 +Shift+Down arrow

Restore/minimize active desktop windows vertically, maintaining width

 +Shift+Left arrow or Right arrow

Move a window in the desktop from one monitor to another

 +Spacebar

Switch input language and keyboard layout

 +Ctrl+Spacebar

Change to a previously selected input

 +Enter

Open Narrator

 +Page Up

Move the Start screen and apps to the monitor on the left (apps in the desktop won’t change monitors)

 +Page Down

Move the Start screen and apps to the monitor on the right (apps in the desktop won’t change monitors)

 +Shift+period (.)

Snap an app to the left

 +period (.)

Snap an app to the right

 +/

Initiate IME reconversion

 +Alt+Enter

Open Windows Media Center

 +plus (+) or minus (-)

Zoom in or out using Magnifier

 +Esc

Exit Magnifier

To see a more complete list of shortcuts…

http://windows.microsoft.com/en-US/windows-8/keyboard-shortcuts