Fedex offers a baggage free traveler's service. It purports to ship your belongings to your destination rather than taking them on your person.
This raises a question:
How are customs declarations and duties handled when the destination is in a different country?
Luggage you take across a border on your person seems to be considered to be "personal effects" by default and not subject to customs duties. In contrast, items shipped across a border via courier seem to be considered by default to be some sort of commercial item to which a customs duty applies. Which leads to the question:
How do you ship personal effects across a border so that they are not assessed customs duties?
Does Fedex treat "Baggage Free" shipments especially at the customs clearing stage of shipping? Or, is it up to the sender to make some special customs declarations in order to avoid customs fees?