our travel style for our family of 4 is no checked bags. we each have a backpack and a carryon suitcase. we use packing cubes, and yes, we wear things more than once. We wear our biggest/heaviest pair of shoes on the plane, and pack 1-2 pairs. In November we did a week in DW and then a 7 night cruise. We bring a collapsible laundry bag, and we did laundry on the ship the first day so we would actually have clean clothes to wear on the cruise. On our last night we did laundry again so that we were coming home with clean clothes. The ship has so many machines, we can do multiple loads at once and get it over with in a short period of time insteas of doing one load at a time at home. it feels so good coming home with clean clothes, and have one less thing to do.