Customizing the Adobe Premiere Workspace
Premiere allows you to customize and save the layout of your workspace. This is useful for saving configurations for different editors or different types of project. To save the current workspace, go to Window > Workspace > Save Workspace (Note: in CS5 it's called "New Workspace").
Premiere also comes with several pre-defined workspaces to get you started (Editing, Effects, Audio and Color Correction).