Readership is dodgy, but you've at least found a way to cut the postage bill...

We thought we were on top of all the various kinds of circulation strategies but, clearly, no. A Boston-based conceptual artist Tim Devin has come up with an idea that has gone global: Leaving magazines on park benches.

Every month or so about 50 copies of a magazine (yes, you read that right, 50 copies) called "I left this here for you to read" are placed on benches, in buses and in dentist's offices, free for people to take. The magazine is now on issue 24. It's completely handled by volunteers and some people have been so won over by the idea that they've started their own editions. For instance, in Darwin, Australia.

Anyone can submit written pieces (no more than 400 words) and black-and-white images. They can even submit small, flat and thin objects able to fit in a small envelope. Contributors receive two copies of the magazine.