This is a great time saving little tip for Leopard (10.5). It comes from MacWorld magazine via MacOSXHints.com.
It allows you put a “recent items” stack in your Dock. You can control-click/right-click for options to change between documents, application, servers, or favorite items. I have mine set to recent documents. This is the same recent items list that shows up on the Apple menu. It’s crazy helpful when you work several of the same documents over several days, like style sheets or Photoshop files.

