A few blocks’ walk from the hopping city square that shares its name, O’Donnell’s opens every day at 10 AM, automatically making us want to ditch our morning joe for Natty Boh. This classic Canton dive deals in unfathomably cheap drinks, a spirited parade of outspoken regulars and shuffleboard – sweet, sweet shuffleboard. Pucks are stored behind the bar in a crappy old cigar box, as they should be (531 S. Potomac St.; 410-675-0160).