I came across a helpful article on affording organic food. Before I comment on the article a quick (I hope) word about 'why organic' in general. I've seen articles that show that organic is "no more nutritious than non-organic vegetables". Research is mixed. Some say 'Yes'. Some say 'No'. I hope the "yes" wins out, but even if it didn't we'd buy organic anyway. We buy it mainly for another reason: pesticides in the urine. There was also a study done on suburban Chicago school-age kids (close in suburbs like River Forest) and the results were similar (sorry, I can't find that reference today.).
Back to the article - Well written and short; they give nine practical ways to cut costs and still buy organic. When they talk about becoming a member of a local farm they mean: CSA - Community Supported Agriculture; even in very urban locations you can find farmers who will sell to you this way and many of those are organic as well, plus I like to know where our stuff comes from.