When the employees at Nothing, an Amsterdam ad agency, say they work out of a cardboard box, most people are probably think they’re making a joke about their cheap-o bosses. They’re not, and the bosses aren’t being cheap at all. Rather, they commissioned Alrik Koudenburg and Joost van Bleiswijk to create all of their office furniture using only cardboard. The results are pretty impressive, but they’ll only grow more interesting over time, since visitors are encouraged to mark up the surfaces with anything they please, making the entire office a palimpsest. It’s worth noting that cardboard furniture has a long history: Frank Gehry’s cardboard line is a modern classic that’s been in production for thirty years; Design Within Reach used to carry an excellent cardboard desk that I owned for a while. It’s a great material: Light,strong, green, and warm-looking.