Originally Posted by MikeDT
When I'm flying, I always avoid putting anything in trouser pockets because of the metal detectors and frisking. Everything in the jacket, it goes through the X-ray along with carry-on, and you're done.
I'll often have an MP3/MP4 player as well, and maybe a book or two, in addition to the smart-phone, passport, boarding card, wallet and house-keys when travelling. They're in jacket pockets, as it saves rummaging through the overheads.
I'd like to see that, thanks.
The coat is the one pictured in my previous post. It has a camera rigged n on of the chest zip pockets but that's obviously not necessary for our purposes.
Quite true about keeping trouser pockets empty at the airport. But whatever you'd keep in a secret pocket like extra cash and so on only needs to be there while out and about at your destination, and if the circumstance occurs where you need the stash pocket, you may lose your coat. Hopefully you're less likely to lose your trousers, which is why the stash pocket would be there.
I use my phone for music listening and book, journal reading, so that saves a lot of room. Keys I keep on a clip and that can be clipped to a pocket rim on the jacket. Wallet goes with the other documents.
What may be in order is a smaller, separate pocket next to the phone pocket for the headset, to keep it from tangling up when stowed and to manage cord slack when in use.