This year, the first day of summer -- known as the Summer Solstice -- is June 20, 2012. Everything She Wants plans to celebrate the longest day of the year in New York City with a free evening yoga class in Times Square sponsored by Athleta. But with a weather forecast for temps close to 100 degrees, I plan to apply plenty of my favorite sunscreens; the paraben-and-fragrance-free Kiss My Face Sun Spray Lotion, SPF 30 (available at Whole Foods Market) on my body and LaRoche-Posay Anthelios 45 Ultra Light Sunscreen Fluid Broad Spectrum SPF 45 as a facial moisturizer . Use a broad spectrum sun screen. Both products have "broad spectrum" coverage, which means they protect against UVB (short solar rays that cause burning and skin cancer) and UVA (long solar rays that cause skin cancer and wrinkles). If a sunscreen doesn't say broad spectrum or UVB/UVA protection, then ease on down the aisle to find one that does. And when it comes to SPF ratings (sun protect...