Meet sex partner without using a credit card
In Beijing, I can also pay by phone for movie tickets, takeout food and to shop for goods for delivery.
I wrote checks for my rent and paid most of my bills online.
"So Chinese just skipped credit cards and went to mobile payments." As we ride around Beijing, Gu points out the advantages of mobile payments.
No coins or crumpled bills that can be lost or stolen, electronic receipts, the ease of keeping track of spending -- and of course, no bulky wallet.
Admittedly, I was a bit skeptical about going an entire day Beijing without my wallet, but I was surprised to discover just how easy and convenient it is.
I pay for breakfast by scanning a QR code on the window of a hole-in-the-wall restaurant that sells jianbing, a delicious fried crepe that's one of China's most popular street breakfasts.
At a nearby coffee shop, the barista scans a QR code on CNN news assistant Shen Lu's phone.