Just back from Best of Spain (which turned out to best BoS + COVID but that’s another story).
I spray starched all of my cotton/linen tops and dresses and it was a game changer!
I unrolled my clothes and hung them up. They were creased and awful. By the next morning everything looked GREAT. Added bonus dirt just seemed to roll off the clothes.
I used plain old spray starch. Iron/starch/ iron again/ starch again then roll and pack.