Desktop wallpapers always come in handy. The more inspirational, beautiful and elegant they are, the better they can challenge our imagination and provide some fresh perspective in a rather tedious and monotonous workflow. However, desktop wallpapers sometimes can go far beyond offering colorful eye-candy; sometimes desktop wallpapers include calendars, funny cartoons and logos of favourite tools, services and companies. The latter is particularly true for Apple-fans and Microsoft-haters as well as for Google, Twitter and Firefox-users.