If you travel in the developing world, you’ll know that taxi and transportation strikes are stunningly common. Have you prepared for one? These travelers had to walk more than two miles from the airport to a location that wasn’t blockaded by striking taxi drivers in order to get to their hotels. Can you carry your bags that far? If not, you overpacked.
When I travel, I carry the Osprey Sojourner as my luggage. It has very sturdy wheels as well as a set of hidden backpack straps and a hip belt in the event I am on rough terrain where the wheels won’t roll.
It’s not cheap, but it’s bulletproof and I can hike with it if necessary.