An awesome, and sometimes free, ferry that links Manhattan at the Financial District to Ikea in Brooklyn via Red Hook. Very great views of the city and if you end up having to pay it's redeemable for a monetary discount towards an Ikea purchase. I think of it as a treat and an investment.
It’s easy to get lost in the density and chaos of New York but there are opportunities to step outside of it for a macro view. Chartering a sailboat on the Hudson is a great way to escape and see the city in a different light, especially at night.