A billboard from electronics retailer Currys has invited passersby to remove old e-waste built into the ad, which can be exchanged for cash at Currys. The campaign is designed to highlight the hidden value in their unwanted tech, as well as the increasingly prevalent problem of e-waste.

As people become more aware of the environmental impact of their consumer habits, there is a greater incentive to buy second-hand. Adopting principles of the circular economy, Twig has launched a free banking app that allows users to trade their pre-loved goods for instant cash.

Kibu offers kids sustainable headphones that they can learn to build, repair, and recycle. By providing not only a sustainable option for parents but a customisable and educational product for children, Kibu's appeal could cut through the often unsustainable world of kids' products.

How are tech firms helping people feel safe as they spend, use social media, and explore the world? What types of data warrant the most concern online? And as artificial intelligence is normalised in everyday life, what are some of the reasons why individuals are embracing or avoiding these tools?