Mary Portas looks at the impact that Brazil is having on our bottoms. With M&S predicting that the shape of the humble knicker is changing, what might this mean for jeans? As a country, the UK is moving away from disposable fashion and spending more on experiences, from cycling to festivals or weddings. Britain is a world leader of the outdoor music event, with festivals having a direct impact on high street trends. Mary also meets some mamils, who form a big part of the booming cycle industry. There's also a look at the impact that social media is having on weddings, from cakes to dresses and flowers. And, lastly, should you digitally detox and swap your smartphone for a new 'dumb' phone?