I can barely plan next week, so this 20 year calendar gives me the creeps. That's 7,300 pages, a whooping 2 feet (60 centimeters) of paper coming off the wall.
It was created by the Saatchi & Saatchi ad agency in Germany to promote the Schott solar panels, which apparently are so durable that they can last for 20 years. That's exactly the warranty of these things. It seems that the calendar is so popular that their sales force is being inundated with petitions from clients who want to have their own.