What Should I Do in NYC?

In a couple of weeks I'm going to be headed to New York City to spend a few days with my sister and her lovely Ikea futon.

I’ve been to NYC a few times but there are still lots of things that I want to do there (or do again). So far, plans for this trip include:

• Stuffing our faces at Smorgasburg
• Stuffing our faces some more at Rice to Riches and Doughnut Plant
• Shopping at the Brooklyn Flea Market
• Shopping some more at Uniqlo, Century 21, Brooklyn Industries, Fishs Eddy 
• Going to the Natural History Museum
• Dancing at Webster Hall’s Friday night party
• Possibly checking out Cocktail War at the Hudson Terrace
• Possibly eating these yummy churros and/or something from The Commodore
• Eating a to-be-determined meal at The Dutch
• Finally doing the boat cruise

What else should I do? Any restaurants/shops/clubs we should check out?

Thanks for your suggestions!