Living in a big city like New York, you learn that space is a premium. You pay by the square foot, so anything you buy that takes up a lot of room becomes doubly expensive in the long run. That's why I'm a big fan of this Ladybird bath.
It's both a sink/vanity and a bathtub in one, allowing you to get the most out of your tiny bathroom without feeling too cramped. Just take the top off the sink and climb on in to soak when necessary. Sure, your significant other won't be able to brush their teeth while you're bathing, but that's a small price to pay for all the precious, precious square feet you'll save.
Via Yanko Design