Pack more, carry it easier, then fold them flat until the next move.
Six Stack Down to a Magazine Pile
The part that matters after the move: they fold flat. Six of them stack to about the size of a magazine pile and go under a bed, on a wardrobe shelf, or in the garage. Cardboard has to be broken down and then you have a flattened stack leaning against your wall for a month because the recycling bin only takes so much at a time.
Still under her bed