Let's be honest with ourselves here for a moment. If you're heading to Ikea to furnish your home, you probably don't live in a sprawling million dollar mansion. Instead, you're probably furnishing a tiny dorm room or a cozy apartment. And not only is Ikea aware of this, it's also taken it to heart with a tiny billboard that still manages to maximize ad space with three different messages.

Using lights that can toggle between red, blue, green, and white, the billboard will display one of three message that work together to form a coherent campaign reminding consumers to make the best use of the space they have. And if that happens to involve the purchase of countless boxes of flat-packed furniture, then all the better. [YouTube via Taxi]