Dry-cleaning startup Cleanly is expanding out of the District and into Arlington. Its new service area will include Ballston, Rosslyn and the Courthouse and Clarendon areas officially on April 24, although Cleanly is already conducting a "soft launch" as it feels its way into a new area, according to the startup. New York-based Cleanly, founded in 2013, picks up and drops off dry cleaning and clothing through its online service. Rather than an on-demand service, it has set times you can pick...