Tesco and Oculus Rift have created a virtual reality supermarket that lets shoppers browse from the comfort of their armchairs. As supermarket sales stutter and experts predict the sector is in "structural decline", retailers are looking to provide more immersive experiences.

Whether swooping over sprawling landscapes or careering through space, an hour spent on Icaros – a virtual reality at-home gym that claims to exercise both mind and body – promises to be a truly holistic workout. Is this what the future of fitness looks like, or is it just another VR gimmick?

2015 will see an avalanche of virtual reality devices appear in the mass market, with the likes of Sony, Google, Facebook and Microsoft targeting gamers across the globe. The technology may now be an attainable reality, but will it be used for anything beyond video games?

The traditional hotel star rating doesn't work for Millennials. But from updating décor to offering choice and control, Marriott International is rethinking their business model in a $60m rebrand that focuses entirely on the Millennial mindset.