Jennifer Aniston has the California-cool aesthetic down to a formula, and it starts with her denim style. The actress often reaches for easy, laid-back blue jeans, and we found her baggy look on sale for only $34. After a dreamy week in Mallorca, Aniston was spotted hugging pal and former Friends costar Courteney Cox at the airport. Her outfit was laid-back and classic, consisting of a simple black tank and California-coded jeans — a.k.a. the same jeans style that’s dominated fashion-girl wardrobes all year. We’re copying her casual tank-and-relaxed-denim combo indefinitely....