One bag, that's the rule
- A 25L backpack or small duffel - nothing checked
- Two shirts, one extra pair of pants, four socks, four underwear
- One 'nicer' item for dinner
- Toothbrush, deodorant, single travel-size everything
- Charger cable, single power adapter, one book or Kindle
The transit kit
- Boarding pass and ID in a single pocket
- Small cash + one card
- Noise-canceling earbuds
- Empty water bottle
- One layer for the plane/train
The overlooked
- Melatonin or something to sleep on the return flight
- Snacks for late arrival
- A folded reusable bag for anything you buy