The Beach....I think you missed a spot....part 1

Ok, I've been a "stay away from the sun" girl for several years. This may have contributed to my Vitamin D deficiancy, which my doctor detected a few months ago. I've stayed out of the sun for a number of reasons- wrinkles, skin cancer....sweat. But when it comes down to it, the biggest reason is I get sunburned. Ouch. Even when I put on sunblock, I get burned. Case in point, yesterday, at the beach....I put on sunblock, yes I did....twice....and I still am left with spots of burn. No matter how much I put on, I miss spots and I don't know until later when my skin glows the ugly red of the burn.