The Mennonite Central Committee thrift shop in Harrisonburg, Va., is doing so much business it is investing in a $3.8 million expansion. Deb King is general manager of Gift and Thrift Shop Inc., an organization that includes not only the Gift and Thrift store but also Booksavers of Virginia and Artisans’ Hope, a fair-trade store. King said the thrift shop saw a 9.2 percent increase in revenue in 2015.