Yeah,
Dress comfortably; it's really hot there.
Don't drive, use cabs and/or car services to get around (you'll see why).
The Bundt is pretty neat, maybe better at night.
Old town Shanghai was neat; it even has a freaking Dairy Queen.
If you need a new suit get one in China. A custom fit and tailored suit there will run yoiu about $300 U.S.
Captain4242