Duty-free shops (or stores) are retail outlets that don't apply local or national taxes and duties. Duty-free shopping is a bit of misnomer though because shoppers may still have to pay duties in their home country on items purchased from a duty-free shop. They are often found in the international zone of international airports, sea ports or on board passenger ships. They are not as commonly available for road or train travelers, although several border crossings between the United States and C… (More on Duty-free)