India, Sept. 23 -- The idea that less is more, can be seen and felt in several parts of Denmark's capital Copenhagen. It is there in the city's raging cycling culture; in its flea markets; in city and home design and most importantly in its recycling units.

Would you leave your things, which you have no space for anymore, to be taken away by unknown citizens for their use? Not for charity, Copenhagen's recycling units are places where people leave their things for other tenants, neighbours etc to benefit from a product's entire lifecycle.

Strolling through Nordhavn, Denmark's new city built in what used to be once an industrial port area, one will come across such recycling or Genbrug units where tenants or homeowners have left books, C...