I thought it would have occured much earlier than this...but the first show I saw by myself was "Thou Shalt Not" (and I guess any potential show-going partner for that night should be thankful of that fact).
Every other time I saw a show in NYC, I had either been travelling in the city with friends/family, or met friends who were NYC residents at the theatre.
"You pile up enough tomorrows, and you'll find you are left with nothing but a lot of empty yesterdays. I don't know about you, but I'd like to make today worth remembering." --Harold Hill from The Music Man