VPN realities, Alipay/WeChat Pay, the train and metro grammar that gets you from A to B without standing in the wrong queue.
In China the queue you join is part of the ticket. Here is which lane is yours at the rail station, and how the metro really takes your fare. CN: 外国护照怎么过中国车站闸机
Mobile payments dominate China so completely that cash rarely solves the problem. Here is how to get your money moving before you land. CN: 外国人在中国的移动支付指南