I like to go two lane market which around the Confusions Temple, especially the small shops which sell the chopsticks and the crystal balls, they were so nice and pretty, and you can barging with them, i like barging a lot, whatever the price they say just say 20%-30% of it, normally it usually will be like that. If you can go with your Chinese friends that will be easier. 

I found some more new gates of Nanjing city wall. they are: Zhonghua Dongmen(中华东门), Zhonghu Ximen(中华西门), these two gates are on the east and west side of Zhonghua Men, which becaome the main road of go inside and go outside of the city. Yifeng Men(仪凤门) is connect with Yuejiang Tower. on the North-West side of Nanjing city.