In my early years as a New Yorker, I had a huge issue keeping track of all of the different restaurants I had been to - where I had eaten, where I'd like to go again, and where I didn't like so much.
This really frustrated me because every time I wanted to return to a good restaurant, I had no idea where it was or the name of the restaurant. I also started feeling embarrassed because my out-of-town friends would visit the city and ask me for restaurant recommendations, and I was usually speechless...because I couldn't remember.
I had lived in NYC for two years at that point, but to the outside world and sometimes myself, it didn't seem like I knew anything about the city.