Zach Houston runs his Poem Store (on any given sidewalk) with these items: a manual typewriter, a wooden folding chair, scraps of paper, and a white poster board that reads: "POEMS — Your Topic, Your Price."
Houston usually gets from $2 to $20 for a poem, he says. He's received a $100 bill more than once. The Oakland, Calif., resident has been composing spontaneous street poems in the San Francisco Bay Area since 2005. Five years ago, it became his main source of income.