In New York City, if you want to live long enough to tell the tale, you delegate. In my case, it comes down to this: find the experts, and let them handle it. I do my job, you do yours. It works. So with a nail salon, where the manicurists know what they’re doing, it’s easier if I just let them do their thing, and not intervene. It gives me more time to tweet. Or listen to my neighbor’s conversation on her phone.