Windows 7 Keyboard Shortcut's Tricks

Anyone working professionally with a computer has their hands on the keyboard most of the time. Reaching for the mouse can be an annoying disturbance and personally I often turn over my mouse in such situations. An easy solution is to simply keep the hands on the keyboard and complete as many tasks as possible with keyboard shortcuts only.
Aero Shortcuts :
•[Windows] + [Spacebar] (Aero Peek)
 Make all open windows transparent to view gadgets and icons on desktop.
•[Windows] + [D] (Aero Peek)
 Show or hide the desktop.
•[Windows] + [Home] (Aero Shake)
 Minimize all but selected window. Reverse by clicking the key combination again.

•[Windows] + left arrow OR [Windows] + right arrow (Aero Snap)
 Dock selected window to the left or right half of your screen.
•[Windows] + up arrow OR [Windows] + down arrow (Aero Snap)
 Maximized and restores the selected window.
•[Windows] + [SHIFT] + up arrow OR [Windows] + [SHIFT] + down arrow (Aero Snap)
 Maximizes and restores selected window in vertical dimension only.
•[Windows] + [Tab] (Aero Flip)
 Launch 3D representation of open windows and click [Tab] key again to flip through them.

Windows & Taskbar Shortcuts :

•[Alt] + [Ctrl] + [Tag] + left/right/up/down arrow
 Flip window.
•[Alt] + [Tab]
 Cycle through open windows.
•[Windows] + [T] OR [Windows] + [SHIFT] + [T]
 Move focus to front or back of taskbar. Press [T] again while holding the [Windows] key to cycle through items in the taskbar from left to right or, with [SHIFT] button held too, from right to left.
•[Windows] + [B]
 Puts focus on the ‘show hidden icons’ button on the system tray.
•[Windows] + [1] THROUGH [Windows] + [9]
 Launch first through ninth icon on taskbar, including items pinned to taskbar.
•[Windows] + [SHIFT] + [1] THROUGH [Windows] + [SHIFT] + [9]
 Starts new instance of respective taskbar icon.
•[Windows] + [Ctrl] + [1] THROUGH [Windows] + [Ctrl] + [9]
 Cycles through multiple instances of the respective icon.
•[Windows] + [Alt] + [1] THROUGH [Windows] + [Alt] + [9]
 Opens jump list for respective icon.

Multiple Monitors Shortcuts :
•[Windows] + [SHIFT] + right arrow OR [Windows] + [SHIFT] + left arrow
 Move selected window from one monitor to another. They will remain in the same relative location.
•[Windows] + [P]
 Select presentation display mode.

Magnifier Shortcuts 
•[Windows] + [+] OR [Windows] + [-]
 Activates Windows Magnifier to zoom in or out of screen.
•[Ctrl] + [Alt] + [D]
 Switch to docked mode.
 •[Ctrl] + [Alt] + [L]
 Switch to lense mode.

•[Ctrl] + [Alt] + [F]
 Switch from docked or lens mode back to full screen mode.
•[Ctrl] + [Alt] + [I]
 Invert colors.
•[Windows] + [Esc]
 Exist magnifier views.

Other Shortcuts :
•[Windows] + [G]
 Cycle through desktop gadgets.
•[Windows] + [X]
 Launches Windows Mobility Center. Especially useful if you’re working on a laptop.