Do you wear it on the rest of your body (parts that aren't covered by clothes) all year round too?
I (stupidly) haven't bothered much with SPF up to this point in my life - other than wearing the occasional moisturiser which includes it, and sunscreen when I've been abroad in hot countries.
I've become a lot more wise to the dangers of the sun, but at what point do you wear SPF on your body? Temperature wise?