Bergen St Station
2 blocks, just down Congress/Bergen
Borough Hall Station
7 short blocks, down Court Street
Jay St Borough Hall Station
10 minutes away, just past Borough Hall
B61 Bus
3 short blocks, Atlantic & Clinton
The B61 goes either to Red Hook (Fairway and the front door of Ikea) or Williamsburg (right down Bedford Ave)
B63 Bus
3 short blocks, Atlantic & Clinton
Goes down Atlantic to Target, and then through Park Slope's 5th Ave.
Taxis
Clinton Street is a popular route for cabs heading back to Manhattan via the Brooklyn Bridge, so you can always find a yellow cab right outside, any time of day or night.
And of course there's an abundance of local car services in the neighborhood.
Brooklyn and Manhattan Bridges
The most enjoyable commute to Manhattan is by cycling or walking across either bridge in the separate, protected pedestrian and bike lanes.