Never used. I didn't think they would save space as I've always folded my clothes more compactly. It turns out yes. Something about better organization saves a surprising amount of space. They appear to be well made and two large and two small sizes fit in my 24 inch bag which has room for shoes and toiletries. I bet the whole set will fit in a 28" check-in bag and the two smaller sizes will fit in a 20" carry-on. I'm a tall person, which means my clothes take up twice as much space as a short person. I could fit a week's supply of oversized cotton blend sundresses and 3 sports bras and 7 shorts in the smallest size. This probably means that an adult half my height could fit a two-week supply of clothes and two weeks of underwear in just one of the largest and smallest cubes. That is much. To be effective with the dice and to keep them in the right shape, it's best to roll up your clothes or fold them very tightly. Google has many examples of how to do this. I haven't ridden yet, but I can already see that they will keep me in order. I don't have to unpack, just pull out the cube I want, grab the item I want, and put it back in the case. It will save a lot of time at the end of my trip. Not to mention the ability to separate dirty laundry from clean; In fact, I'm very happy about that. UPDATE: I've already been on a trip. Now I'm in a dorm in a tiny room with no shelves or dressers. You were as helpful as I thought. They do the job of a dresser and they do it like champions.
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