Press release?

How can clothing manufacturers get away with labeling dress shirts "wrinkle free" or "permanent press?" Wrinkle resistant, OK, but without wrinkles?  Not happening.  Even "steaming them" by a hot shower isn't going to do the trick, like anybody really does that (though a lot of us have tried it once), and it's not like you can put a shirt between the mattress and box spring like you can with pants (better line up the seams and pleats just right, though).  Of course, if you're going to wear a sweater over a shirt, the issue is obviously moot.  And it's not so bad if you'll be wearing a suit/sports jacket with a tie, as the exposed area is not that noticeable and will even out a little bit as your body warms up the shirt.  Wear a 100% cotton dress shirt?  Looks good once and never again.  Iron?  Who's got time (or a spouse that will do that)?  So when it comes time to wear a dress shirt, it has to be wrinkle free, but wrinkle free it will never be, except on those rare occasions when you really shouldn't have wrinkles and will have to pull out the flat thing that gets hot.  Of course, you can always send them out to the laundry for a buck a shirt or so, plus transportation time and aggravation, but not many of us will do that.