Many of us have probably been enjoying the warm weather that the heatwave is bringing, but it's also been making homes unbearably hot.
Houses in the UK often aren't built to withstand high temperatures so it can be hard to keep cool when spending time inside.
Things like fans and ice packs can be really effective at helping us cope with the heat, but one writer decided to take things further and try out a cheap and energy-efficient hack that's supposed to keep an entire room cool for as little as 70p.
