Being a traveler from Europe you will find that many products and goods are so much cheaper in other countries and regions of the world. Whether you buy a unique souvenir from a night market in Asia or a designer shirt in Buenos Aires or New York, you'll have to carry the item around in your backpack for the duration of your trip. That may be fine if it's a lightweight and compact item, but our basic advice is to ship home large and heavy items that you do not need while traveling - or, if you MUST carry it around, at least buy it during the last days of your journey.