Teeny tiny Japanese bakery that is so easy to miss, you'll need the exact address to find it. They serve Kitten Coffee, which is brewed only a few miles away in Bed Stuy, and amazing pastries by chef Ayako Kurokawa.
Right across from McGolrick Park in Greenpoint, Pie Corps is a great place to meet up with friends (or internet acquaintances) and grab some iced coffee/pie. It's quiet, it's cute, and they're always playing great music.
Catbird is magical! It's a tiny jewelry and knick-knack shop stuffed with precious things (and tons of people). If I had infinite cash to blow on whatever I wanted, I would honestly buy one of everything here.
Spa Castle is a truly weird spa that reminds me of why I love living in NYC. Nestled in Flushing, Queens, $40 gets you in the door with unlimited access to the saunas and public baths. Go hang out with your friends and see everyone's birthday suits.