What if you had to move to NYC on a whim? Could you cope with a small apartment or a studio? Space is at a premium in NYC, and most are not used to it.
Have less, but maintain your standards of quality. Hold true to your style.

Think minimalist, sparten, practical.
Maintain a comfortable furniture size, be aware that too large and you will be crowded, even setting yourself up with hazardous walking in the evening! Dont get more than you will actually use.

Hide a beds or futons are an answer, however the sleeper beds are a beast! so if you dont live on the first floor…..

Shelves are the prime key in situation where space is minimal, use lots of shelving. Look into hanging lights to preserve floor space.