What You Need to Remember When You're Mailing Something

You don't have to put the full return address in the US, you can often just put the zip code. The easiest way for someone to cross check that is to say, Hey, was this dropped in a box or sent through the post in a place where that zip code is, right? Or was it really far away? Is somebody sending something from say Dallas, but they're purporting to send it from Portland, unnecessary tongue twister there?" "It would be dangerous if everybody knew exactly how it functioned," he says of postal system.