Funny, I always have wallpapers with a saying to help me stay focused. :)
My favourite are those two : https://dl.dropbox.com/u/4286043/walls_hn/wallpaper-18584.jp... https://dl.dropbox.com/u/4286043/walls_hn/wallpaper-2090640....
But I also got those 2 quite often : https://dl.dropbox.com/u/4286043/walls_hn/KISS___Keep_It_Sim... https://dl.dropbox.com/u/4286043/walls_hn/wallpaper44969.jpg