Commuters trying to get to and from Manhattan are faced with hours-long ordeals after Superstorm Sandy shut down many transit options, overloading the remaining lines.NEW YORK — Eric Gsellmeier's shortest commute home this week began in downtown Manhattan at 4:30 p.m. and ended two hours and 20 minutes later in his three-bedroom Colonial home in Westwood, N.J., 27 miles to the north.