Most of us know the skin is the largest organ in our bodies. It's also among the most abused. We expose it to all kinds of hazards, often intentionally when it comes to tanning and makeup and drying soaps. As we age, we pay for those sins with everything from wrinkles and age spots to skin cancers. I grew up along the ocean and had a backyard indoor pool, and as a teenager I didn't use sunscreen. In fact, because tanning was so competitive at my high school, and Hawaiian Tropic so expensive, my girlfriends and I literally fried our skin in Crisco. Then in college, I once fell asleep for four hours in the sun. A friend and I spent that night in a hospital emergency room. I still bear the scars from that lapse in judgement. Runners are particularly prone to skin damage, which is why when the folks at Eucerin told me about a new product and a new campaign, I was immediately on board. They sent me a bottle of their new Daily Skin Balance Body Lotion, which contains "a uni