Like many young women in their 20s, fashion fan Hollie knows how easy it is to buy a new outfit for a special occasion and then not wear it again.
In 2014, the then 18-year-old decided to start clearing her wardrobe and put old outfits on Depop to sell in a bid to make some spare cash.
The app lets people buy and sell unwanted outfits and has revolutionised the second-hand clothing market - and helped savvy sellers make thousands.
