German agency Thjnk came up with a very nerdy but definitely effective way to show how it's not just Ikea's furniture that acts as a space saver.
It put up a billboard with three headlines on top of eachother, one each in RGB colour and with three coloured bulbs. The headlines translate to "Do it like this billboard, make good use of your space, with small space solutions from Ikea."
Each is visible as the background colour changes, making three billboards from one and the best use of nine square metres. Hopefully they're not suggesting home owners stack up three chairs and try to seat their family on them at the same time.