Below are some quick Microsoft Windows 7 Taskbar tips that can help you be more productive.
Holding down Shift and right-clicking an icon on the taskbar shows the properties for that program.
Hold down the Shift key and click any icon on the taskbar to open a new instance of that program. For example, if you had an Internet Explorer Window open, pressing Shift and clicking that icon would open a new IE window.
Holding down Ctrl + Shift and clicking on any program icon in the Taskbar opens that program and run that program as administrator.
If you have multiple instances of a program open pressing and holding down Control key while clicking the icon for that program will cycle through each of the windows for that program.