Marylou Sandry loves old country stores. That's the big reason she bought Erickson's News on Washington Street in Abington Center. The store, which has had several owners, had been Erickson's as long as merchants in the area could remember. But now it's Marylou's Coffee. Marylou's was Sandry's seventh store in a chain of small, old-fashioned mom-and-pop stores where you can buy lottery tickets, snacks and newspapers and join in conversation on almost any topic. Sandry purchased her first store in 1986, at Hanover Four Corners. "The building sold me," she said. "At that time I couldn't even operate a cash register."