Most people think that they're at risk only when they're outside on a sunny day, but UV light can go right through clouds, so it doesn't matter if the sky is overcast. The sun's rays are strongest between 2 pm and 4 pm. 36% of Americans spend time outdoors between those hours. Glare and reflections can give you trouble, so have your sunglasses ready if you'll be around snow, water or sand, or if you'll be driving (windshields are a big glare source). Did you know that in the winter, snow reflects up to 85% of UV rays? Parents are more likely to wear sunglasses (56%) than their kids (29%). Make sure your children have and wear their sunglasses as well.