SuncreamWhether you think you need it or not - always take it with you. Those harmful rays can still get through on cloudy days, so don't let it fool you. I prefer to use Benefit Dream Screen on my face as it's a lighter formula to other creams, but if I don't have it to hand, I'll slap on whatever's nearest. I'm pretty pale and can burn easily so I always opt for factor 30 or higher.
Sunglasses I probably shouldn't admit this, but I'm that person who wears their sunglasses while driving when it's not even remotely sunny. Sometimes you just don't want to take them off and this Whistles pair make everything look better. Make sure you pack a pair to avoid squinting at the sun, headaches and for those days when you've not slept so well the night before!