It depend on the type of spender that you are. Meaning, you can take a million dollar with you on that trip but if you are a big spender this amount may not be enough, likewise, if you prioritize on what to spend on it may be good enough. Question, how long will you be in the city? If we know the duration of your trip,where you plan to shop (if you re planning to shop) eg Ford-hum Rd or Manhattan( of the two shopping area Manhattan is more expensive) it will give us a better idea of how to give you a possible estimate . $1000 is a good amount for me.
That depends on how long you re staying there and what you plan on doing.If its for a weekend or week and you just plan on sight-seeing and what not, then I guess thats fine.If you plan to stay longer or shop, then you might need to bring more based on your preference of clothing, if you know what I mean. ;D
You biggest problem will be the cold weather. Many things that you can do for fun, with out spending much money, are out doors. And when you go indoors, cost money.
How long you re staying in NYC? $1,000 should be enough, just spend it wisely.Good luck
nothing if you dont mind staying in a shelter and eating in food banks.