Packing cubes — total game changer or overrated?

I resisted buying packing cubes for years. My husband swore by them, I thought they were just another thing taking up space in your luggage. Last fall I finally caved and bought a set before our Carnival sailing and I am a full convert. Here is what changed my mind: We were in a balcony cabin with two adults and reasonable amounts of clothes for 7 days. With packing cubes, everything had a designated spot from day one and I could actually find things without unpacking the whole suitcase. When w…