One of the most common uses for the Stacks feature on Leopard and Snow Leopard is to have an icon for the primary hard drive sitting in the Dock; it allows you to navigate most parts of the entire filesystem include user folders, applications and so on. Problem is, you need a separate icon for each drive.
This afternoon though I found a way to have one Stack icon for all your drives: drag the
/Volumes folder onto the dock instead!
/Volumes is the hidden folder on your Mac's primary hard drive that contains the mounts for each of your other drives.
/Volumes so you can drag it onto the Dock:
- open the Finder
- click Go to folder on the Go menu
/Volumes(including the forward slash) and hit Return
- click the column view toolbar button
Unfortunately, the bad news is List view just displays a series of aliases that launch in the Finder. If you use the Grid view on Snow Leopard though you can now navigate to all the folders on all your mounted drives with one icon.