With the coronavirus wreaking havoc across the world, people are more conscious about personal hygiene. I, for one, have become a ferocious hand-washer, with a bottle of sanitiser gel or spray constantly in my carry bag if I’m out and about. While we do our utmost best to keep ourselves protected i.e. wash our hands, wear a face mask, practice social distancing; we tend to take for granted certain objects we touch and use frequently, on a daily basis. Take, for instance, our smartphone.