Swap shop gives secondhand goods a new lease of life

Customers can trade in old or unused belongings to build up credit with the store

While the internet has reduced buying and selling to just a few clicks, Zhang Neng prefers to do things the old-fashioned way. His store, called Happiness, allows people to exchange goods.

"This shop is sometimes filled with customers," said Zhang, who keeps handwritten notebooks of all the transactions at his 30-square-meter store in Guangzhou, capital of Guangdong province.