The chance to win free coffee for a year doesn't happen often, but you'll have a chance next Thursday. Dunkin' in Ronkonkoma says the first 100 people in line at its Railroad Avenue location will get free coffee for a year. The giveaway is part of the celebration of the newly remodeled store's grand reopening. The store features a more open concept and has cold brews and iced coffee on tap. Doors will be opening at 9 a.m.