Pleasantly anticlimactic: how to change your name in two days in New York City

I changed my legal name in New York City last week and wanted to publicly share the experience.

( cut for long and boring )

I'm not sure if I was really ready for this, in spite of the fact that I chose and began using my name years ago.  I didn't expect to have completed this process until March or so since I wasn't planning to start until December, so I feel like I'm rushing even though there's only evidence for being ahead of schedule.  I'm postponing getting a new government-issued ID until March to make sure I'm emotionally keeping pace with this, but I plan to change my name with my bank and workplace ASAP.