If you've ever jumped headfirst into the season's top 10 trends only to find yourself leaving Forever 21 with a boatload of fad-tastic loot, then you know exactly what we're talking about. While every season brings something new into the fashion world, you don't necessarily need to own it. That's how you'll avoid being a metallic-loving-crop-top-obsessed-fashionista with a floppy boho hat on your head. Rather than subscribe blindly to "what's in," know yourself and recognize when a certain piece (like leather pants) just isn't your thing. On the flip side, you'll start to earn street cred with your friends for defining your own personal style.