Laughing at the binder sitting in the car unused the whole trip because that is exactly how these things go. But I have to push back on one thing, it's not really "all shared docs" now for everyone. Half the people I travel with still want paper, my dad prints every confirmation even when I send him the PDF, and honestly some places still ask for a printed copy at check in. The other thing people forget is phones die, signals drop, and a dead battery at a rental car counter with no paper backup is a special kind of hell. So I do both, shared doc for the group so everyone can add stuff, plus a small printed packet with just flights, hotel addresses, and reservation numbers. That packet is like two pages now instead of the old war binder, so it costs me nothing. The shared sheet wins for planning, but paper still wins when everything goes wrong.