Lots of shitty cars in NYC, lots of shitty drivers. Although NYC is flat so I don't really have to worry about that. I use the E-brake technique, my father taught it to me when I was first learning stick shift (when I had my Jetta) and I practiced it a lot on my uphill driveway. It's quite easy, just use the E-brake to hold the car and start engaging 1st gear like normal....as soon as you have clutch contact, bring the E-brake down. It sounds complicated and unnecessarily annoying, but once you learn how to do it well, it becomes very fluid and easy.