i love shanghai, but i dont know why,
if you feel likeshopping, i suggest you go to xiang yang mart, lots of stuff to buy..most of them are fake though, but good ones...your bargaining power will be put to the test...just a quick tip: when they quote you a price , try slashing 75 percent off..and act as if you dont really like what youre buying.
sightseing?..if youre not scared of heights, try the TV tower..make sure that the weather is clear, coz if its not you wont enjoy the view much.
when i was there i enjoyed just sitting on a busy street like nanjing road or the bund and simply watch people come and go.
original audio cd's/dvd's are really cheap.
be sure to have a chinese dictionary handy coz very few people speak english.
good luck and i hope you enjoy your trip.