[Win]+[Space] opens the Vista Sidebar
[Win]+[T] goes through all task bar programs and shows you the mini preview
[CTRL] holding the CTRL key while scrolling the mouse wheel changes the icon view in Explorer windows
[ALT] use ALT to show the classic menu bars in IE7 and Explorer
[SHIFT] hold SHIFT and right-click to get the context menu items “Open Command Window here” and “Copy as Path” on files and folders
[Win]+[D] show Desktop
[Win]+[E] open Windows Explorer
[Win]+[R] opens the Run dialog
[Win]+[Q] opens Messenger or Office Communicator
[Win]+[F] opens Search dialog
[Win]+[G] sets focus to Windows Sidebar, after pressing the combination again you can toggle through the Sidebar Gadgets
[Win]+[L] lock your Desktop
[Win]+[M] minimize all windows
[Shift]+[Win]+[M] opens all minimized windows
[Win]+[X] opens the Windows Mobility Center
[Win]+ [Pause] opens the Systemproperties window