My desktop theme for September. I haven't changed it yet for this month; running out of ideas. Custom dock icons, custom menubar icons (had to make the modification work on 10.8.1), some of the menubar apps are hidden away and can be easily shown with a keyboard shortcut.
The geektool usage this time around is very minimal, just the uptime of the lappy and an unobtrusive bowtie theme that makes my wallpaper seem like it's getting flipped -- like a vibrant sticker. Finally, an animated falling snow powered by html and css.