There are plenty of things to do in NYC with a toddler, in any season, after all this is the city that never sleeps. Master the NYC subway with a toddler stroller and unlock the hidden gems of the city. Many people come to New York during the holidays but New Yorkers aren’t at our best till its shorts season. Being locked up inside during the summer with a toddler is an evil I wish upon no mother, so I’ve comprised this list of ways to tackle the NYC Subway with a stroller. I like to walk most places but the lure of a free music festival or beach trip…