We usually don't use sunblock, actually. We avoid being out in the sun during the middle of the day, avoid long exposure. Actually, the last time the kids got burned was because some "nice" lady at the lake insisted on smearing them with sunblock. The one child that didn't get the treatment, didn't get burned. That's made me suspicious of the stuff, although I suppose that might have been a bad brand or something.
I do need to start using something on my face, though. I've always had a "rosy" complexion, but now I just look perpetually embarrassed.