‘Til death us do part’ is usually reserved for weddings. But as sustainability becomes a bigger concern, it could be applied to our prized possessions, from cashmere jumpers to iPhones. But how achievable is this in a world where acquiring and upgrading are the status quo?

The used goods market in India is expected to grow to $18.4 billion in 2015. Who’s driving it? Savvy young married couples in urban areas – they’re buying anything from books to cars online. But it’s also this group that are selling. How is a desire to de-clutter fuelling India’s second-hand market?

Whether you use eBay or Depop, selling used clothing online is old hat; a great way to make some quick cash. But taking photos, answering buyers' questions and shipping the goods takes time. Twice seeks to 'take away all of that pain' and help people save time while they earn money.

China’s appetite for foreign luxury has created a resale market at home, with consignment growing 30% faster than luxury overall in 2013. But with 80% of items in second-hand boutiques being fakes, why do people trust Secoo's resale platform for designer handbags and watches?