16. Vinted

Vinted is a website and free app with more than 25 million members that can definitely make you some good money when it comes to selling your old clothes.

All you need to do is take photos of the item you’re selling, describe it and set your price. Once you tap the upload button, your listing goes live, and then you just box your item, follow the shipping instructions, and make sure you send it to the buyer within five days! Easy!

There are no selling fees, so every cent of what you earn is yours to keep – and you’ll be paid as soon as the buyer confirms everything is legitimate.