The T&LC has some good advice and has posted relevant information regarding tomorrow.
most importantly from the hours of 6am to 4pm. you have to have 2 passengers in your taxi to enter manhattan.
you can collect more than one fare at a time.. first ride is on the meter, additional riders are suggested 10 dollars. please do this when the demand is heavy, we all win.
all subways in brooklyn terminate to transfer to busses in downtown brooklyn.
subways coming from the bronx will end at grand central and penn station.... KEY POINTS, to transfer to a bus or transfer to a taxi.