Scan the code of joy at checkout

Use of mobile wallets at offline stores is set to rise as both Chinese and international companies slug it out

Money can make the world go around, and when people see the chance to save some while paying bills, it can make them kick old habits like cash or cards, and embrace change in the form of mobile wallets.

That's what shopper Guo Cuiling, 55, did on December 12 at a supermarket in Beijing, to claim a discount of 50 yuan ($7.72) that on offer for users of Alipay Wallet, a mobile payment system backed by China's e-commerce giant Alibaba Group Holding Ltd.