My favourite thing to do is harp on about how important it is to wear SPF every single day (yes, I am fun at parties, why do you ask?). UVA light penetrates clouds and windows, and along with UVB rays accounts for 90% of skin ageing. No one can escape it, even if it’s grey – and before you ask, no, the sunscreen in your moisturiser or foundation isn’t enough.
Happily, SPF formulas have come a long way in recent years. One of my favourites is Garnier Ambre Solaire Ultra-Light Sensitive Face Fluid SPF50+, which is non-comedogenic, lightweight and doesn’t ruin my make-up. Even better, it literally obliterates all excuses for not wearing SPF. Trust me: I’m doing you a favour. £12, Boots