It isn't polite to ask a woman her age – but what's even worse is when her skin gives it away for her. If you're using the harsh chemicals in commercial products or skipping steps in your skin care routine, your skin could be telling the world you're older than you really are. But never fear – there are many ways to keep the appearance of age at bay. Look younger with these skin care tips (listed below). To keep wrinkles at bay, you have to fight off their biggest ally: the sun. Applying a sunscreen before you smooth on your...