Joseph Swain and Rachel Tayse’s Swainway Urban Farm in Columbus brings in $150,000 on less than a half-acre footprint. How? Find out from 2 to 4 p.m. this Sunday, Aug. 21, on the Organic Niche Micro-Farm Tour, part of the Ohio Sustainable Farm Tour and Workshop Series. (Hint: Through microgreens, mushrooms and more.) Get details here on p. 36.