Yep used the shower trick when the hotel ends up having no iron!!
I got a bit Antler one from their outlet shop at the Lowry, enough for a 3-4 days if you need it and on wheels, they did plenty of smaller ones. Perfect for driving trips in the UK and would probably use it for a short pure business trip on a plane.
They were still reasonably popular in Oz as you could get some good hand luggage sized ones that held enough for a 2-3 day trip.
But when it’s a case I go with the rolling method for packing which tends to work really well over folding.