Photoshop CS3 includes a number of predesigned workspaces for particular projects, such as Color and Tonal Correction and Painting and Retouching.
Click Window ➔ Workspace, and select a workspace from the lower section of the submenu.
You can color-code the menu items that you use most often.
Click Edit ➔ Menus. In the dialog box that appears, click the expand triangle next to a menu name. Click None and select a color from the submenu.