7stacks is free app that lets Windows 7, Vista, and XP users have "stacks" of icons in their Taskbar (in Windows 7) or QuickLaunch Toolbar (in Vista and XP). In Windows 7 and Vista, 7stacks uses Aero, making the stacks look like part of Windows itself, you can browse subfolders within a stack, just like in OS X Snow Leopard. By using stacks, users can reduce icon clutter, and combine a group of related icons into a single icon. For instance, if you use application suites such as Microsoft Office, OpenOffice, or Adobe CS4, you can’ve all the suite's icons combined into one icon! You can also use it to browse and access documents within a folder very quickly. Usually, when you want to edit a series of frequently used documents, you'd have to either launch the app, and go to File|Open, or open the (My) Computer icon and go into your (My) Documents folder and pick the file you want. With 7stacks, just create a stack to that document's folder, and open that document in a couple of clicks.