How to Lock Used Furniture (If the Keys Are Long Gone)

Have you ever come across a cool thrift store furniture find -- perhaps a filing cabinet, desk or credenza -- that had your style, but also had a lock with keys long since gone? Or have you lost your keys to a piece of furniture in your home? It's not impossible to restore locking function to vintage and antique furniture finds; here are a few tips on where to start from a locksmith.