How did we live without these?! I do a lot of short term travel. This makes it so simple to keep things organized while in the suitcase and at the hotel I simply pull them out and put them in the drawers. I don't have to worry too much about what any previous occupant had in the drawer since my clothing is still packaged. I seem to use the medium sized cubes the most (I did buy different sizes) but I think this is dictated by the length of travel/amount of clothing you will need. Take an extra, empty one to pack dirty clothes in just in case you don't wear every thing you take. Cubes wash fairly well--would not chance drying them in the dryer. So far they've held up very well. I loved them so much that my partner decided he needed a set too.