To wear sunscreen – I just got back from the dermatologist, having had a “pre-cancer” (or, as I like to call it, CancerLite) spot removed. Melanoma runs in my family, so I have a predictably higher chance of getting it than most, but it should still be a concern to all.
Neutragena makes a pretty good SPF 70 (!) that sprays on, is absorbed quickly, and smells floral-y. It’s recommended. Jokes comparing me to John McCain are not.