An anonymous reader writes "After several hundred times of logging into your Mac you may be tired of looking at the same old login screen. Maybe you'd like to have a customized login screen for your school or employer's workstations. Forget the $10 programs that automate the process, we'll show you how to customize the login screen entirely on your own, for free. It's not as difficult as you might think, and it's a fun way to personalize your Mac a bit more. Be sure to check out the screenshot below for an example of the results.