They each give you a bit of cultural insight in addition to giving you maps of popular area and info on how to get you there. I left my old clothes there. It leaves more room in your suitcase for things you buy in China.
Cash is the most convenient.
It is incredibly inconvenient. You have to find the ATM and even if you do find one, it doesn t always work. Traveler s check is fine if you don t want to carry a lot of cash. There s a bank nearby China Conservatory of Music, where you ll be staying. You just need to have a passport with you when you want to turn your traveler s check into cash.