I remember asking DMum how she coped with 2 babies quite close together, when we were drowning in a sea of mess with just one.
She had no dishwasher, terry nappies with a twin tub washing machine, no dryer etc.
She pointed out that they didn't have much 'stuff' to get messy, had enough clothes for us but not wardrobesful, and she kept our toy box, which all of our toys went in and I'd forgotten how tiny it was - a sturdy cardboard box with the alphabet painted round the side, and it was a cube of about 3'. All of our toys and games went into this box, so there wasn't heaps of plastic tat strewn across the house. No BLW, and no food/drink outside kitchen or away from dining table.
It was a bit too late for us, although we did cut down on the tat/clothes quite a bit which definitely made the house seem more 'under control', but your 'messmaker'
hasn't arrived yet, so you can control the amount of stuff that comes into the house right from the start.
I absolutely hate those 'making memories' things, it's one of the few phrases that really gets my goat. You don't make memories, you can't force them (fondly remembers DS favourite memory of expensive day at theme park being the lemonade and packet of crisps in the pub garden on the way home!).