I’ve heard a couple people mention they wish you could have a different background set for each “space” in Apple’s spaces feature in OS X 10.5 so that you could tell what space you were in at all times. While this would be great, here’s another way to never be lost in space(s).
Open the Expose & Spaces preference pane in System Preferences and make sure the “Show Spaces in Menu Bar” option is enabled.
Now look at the menu bar – you’ll see a little divided square icon with a number in it. The number is the number of the space you are currently in, and it changes as you switch spaces.
In addition, you can switch spaces directly though the drop down menu when you click this icon, and also launch the expose and spaces preference pane from here.
