@coffeeandcake "the corner of disappointment" will now become my favourite term - I've got a lot more stuff/experiences to relegate than just a not-so-good pressing mat
I have a piece of ½ inch thick wool felt which was purchased from eBay a few years ago, approx 12 x 12 and it works well as is.
I received a bigger “woolpad” for xmas, sure its from amazchinaon, first time I tried it, it messed up my iron, using the same setting as my other mat. I was very annoyed and slung it in my disappointed corner.. I was toying with making a cover for it, or adding a board to back and covering the whole lot, then had an idea…and popped it under my ironing board cover. It seems to work okay like that.