Change the login window background in Mac OS X

Creativebits just reminded me how simple it is to change the background of the login window in OS X.

• Step 1: Locate the file "Aqua Blue.jpg," which is in /Library/Desktop Pictures/. Rename it so you don't overwrite it later.

• Step 2: Create a new image or re-purpose an existing image that inspires you. Name the new image "Aqua Blue.jpg" and place it in the /Library/Desktop Pictures/ directory.
  

• Step 3: There is no step 3.

You might think this trivial hack serves no purpose other than eye candy, but it's also a good way to identify your Powerbook/iBook in case of loss or theft by adding your name and/or phone number to the login window background image.