Here's mine- I'm a minimalist, so no active app dots in the dock and only the bare essentials visible. The dock houses my most-used apps.
I know for most FaceTime is a peripheral app, but for me it's essential because I use it to speak in the house with my family (because we have no intercom) so that we don't have to yell to each other while in different rooms.
I have everything set through multi-touch gestures. I eliminated the file icons by the Trash because I can use the finder for downloads and documents. It was important for me to eliminate the App folder in the dock because I want to access my apps through Launchpad only (and through the Launchpad gesture only), or else there would be no point to it. I also like Launchpad's display of the apps better than the App folder's.
As far as the wallpaper- boring, I know, but I've come to like the royal blues in contrast with my Air's aluminum bezel. I'll switch it up soon, but quite like the Lion look for now. I also have my dock on autohide with magnification.
(And, I know, I have to charge my battery!)