BROOKINGS – Sunday, Jan. 21, will be the final day in business for Family Dollar, a variety store at 623 Main Ave. in Brookings. It is one of a chain of more than 8,000 such stores across the continental United States. Each store is billed as a “neighborhood discount and dollar store.”A call to the Brookings store was referred to Ann Calkins, Family Dollar district manager at Wausau, Wisconsin. She gave no specific reason for the closure. “I have no answers to that,” she explained.