Hats and Sunscreen, Every Day You're Outside!
Just a reminder/warning to those who come down to the beach - Clouds do not block UV rays, so apply sunscreen on cloudy days, too! And wear a hat! Reapply the sunscreen (I use SPF 50 on arms and legs and SPF 100 on my face, nose, ears, back of my neck.) often if you are outside during the middle of the day, whether it's sunny or cloudy.
The WORST sunburns I've ever seen - the "beach tomato" variety, were on cloudy days by people who went to sleep in the comfortable breeze and evidently didn't use sunscreen. I'm sure that they didn't sleep all that much that night!