I'm curious how many suitcases people typically take on long overseas trips. Our family of four adults is heading to Japan for three weeks, but we're only packing three days' worth of clothes into one large suitcase. The other large suitcase is entirely dedicated to souvenirs for family back in Japan, with a smaller bag nested inside the clothing suitcase. We often see people with many bags and wonder why they need so much! How many suitcases are you bringing ?