Jump+Lists+in+Win+7

Windows 7's new Jump Lists appear in the Start menu and Taskbar buttons for programs that support the feature.
 * Jump Lists in Win 7 **

They give you instant access to frequently used commands such as opening recent files or performing program actions.

To access Jump Lists you can either click on the right arrow in program's Start menu entry, or right-click an icon in the task bar or left-click and drag the list open. If there is a document you want always accessible from the jump list, you can just click on the pushpin icon in the right of the document's entry.