Windows 7 makes your PC simplified. Use following shortcut keys to make it even simpler:
Windows 7 Shortcuts
+ ↑
Maximize window
+ ↓
Restore/Minimize window
+ ←
Snap window to left
+ →
Snap window to right
+ Shift ←
Jump window to left monitor
+ Shift →
Jump window to right monitor
+ Home
Restore/Minimize all other windows
Taskbar Shortcuts
+ T
Preview the first taskbar entry
Press again to move forward through taskbar entries
+ Shift T
Preview the last taskbar entry
Press again to move back through taskbar entries
Note: after pressing the keystroke once, use ← and → to cycle through
+ # (1-9)
Launches a new instance of the application in the # (1-9) slot on the taskbar
Desktop Shortcuts
+ Space
View the desktop
+ G
Bring gadgets to the top of the Z-order
+ P
Opens projection options (Computer only, Duplicate, Extend and Projector only)
+ X
Mobility Center (same as Vista, but still handy!)
Accessibility Shortcuts
+ +
Zoom in
+ -
Zoom out