I always use sunscreen unless wearing a full suit. Stupid not to, I've known people die from skin cancer in their 30s, and it was not pleasant to watch. I figure a few minutes a day is worth it. That being said finding a good one at a reasonable price is hard. Banana boat used to make a "surf" one that was quite good but thick as hell. Some burn the eyes with sweat and water so it's hard to find a good one with the right balance of protection and comfort. The spray ones are crap.