Since spending the summer in Seoul, I've been back in Shanghai for nearly a week now.  While I was deeply impressed with the cleanliness and efficiency of Seoul, the politeness of the people, and the variety of life and nightlife in that city, it sure felt good to return to a city whose daily life and nightlife I know so well, and where everyone speaks my language:  Mandarin Chinese with a Shanghai twist.  Over the past week, I've been readjusting to life in China's great metropolis.