Vietnam is not a country where the trip stays still. That is probably the first thing I would tell someone before going. You may start in Hanoi with coffee, scooters, old streets, and the feeling that traffic has its own operating system. Then Da Nang appears. Then Hoi An looks too pretty to skip. Then Ho Chi Minh City feels like someone turned the volume up. Then someone mentions Ha Long Bay, Ninh Binh, Phu Quoc, or a train route, and suddenly your simple plan has branches. Vietnam is not difficult. But it is dynamic. And dynamic trips are exactly where small practical things matter. So instead of thinking about Vietnam as a normal travel checklist, I would think of it like debugging a travel day. What can break? What can be prepared? What should work quietly in the background? Bug 1: “I’ll figure out transport after landing” This is the first bug. After a long flight, nobody is at their best. You are tired. You need the hotel address. You need a ride. You may need to message the host.…