I first read about this on Lifehacker. Google now lets you choose a theme for your Google homepage. The neat thing is that I picked the Tea House theme which has a skyline in the background. When I chose the theme, it asked me for where I lived so it could make the skyline match that of my home town. Pretty nifty
These are the kinds of things that really aren’t necessary, but adds that little bit of extra oomph to the experience.
[update]skyline = sky coloring to the time of day (bright or dark) [/update]