I love track­ing pack­ages. I won­der if pack­age track­ing codes fol­low a cer­tain struc­ture, like cred­it cards. Credit card num­bers need to be approved by a bank first though, so they’re very secure, with good rea­son. If I could, I’d deci­pher the track­ing code for­mat and write a code gen­er­a­tor to track ran­dom pack­ages all day. I would­n’t need to know what’s being shipped, I just like know­ing that I can find out where some­thing is at any point in time.