Usha Vance said she’s trying to keep a normal daily life for herself and her family, including having a membership at Costco. “We have our neighborhood shops. We have our Costco membership,” she told NBC News about living in the Naval Observatory , the official residence of the vice president in Washington, DC. The second lady said she takes their three children to Costco — a warehouse-style store — to buy items for their school lunches and snacks. “We have all our favorite things that we get,”