Just look at your screen and keyboard - they're filthy! Fingerprints, lint, dust, debris, the remains of your lunch, it's all there. Listen, we don't judge, but it's time to start your digital spring ...

As the owner of a range of devices — including smartphones, laptops and earbuds — I’ve seen my tech gather dust and dirt over time with ease. From visible crumbs all over the keyboards, smudged ...