It’s no secret that scouring vintage in-store or online is every fashion girl’s go-to way to pick up standout, one-of-a-kind pieces that make any outfit look extra fab—but what about the shopping strategies that help you find those super-cool vintage pieces in the first place? We got the inside scoop from Shareen Mitchell, owner of the NYC and LA vintage boutique Shareen, about the secrets to vintage shopping like a pro.

Look for the classics

When it comes to vi...