Spare clothes wherever are an absolute lifesaver… spares for adults can also be very useful. Diaper bag, cars, etc.
Kid may appreciate a much louder noise than you’d think they would while sleeping. White noise machine or just a cellphone with something they find peaceful to sleep.
Kids absorb a ton, for our 3rd we implemented a lot of sign language and she communicates so much more than we realized at only 19 months (and since much earlier) which helps keep some frustration tantrums at bay.
Everyone will have advice, some is legitimately not applicable to you/your parenting style/who your child is/outdated. Just between my 3 they’re so vastly different some things genuinely just wouldn’t work for them all and it takes time to find what works whether it’s food, clothing, room temps, etc.
There’s 240w usb-c on every common marketplace for US market, is that not the case for eu?