Tell the head packer what is not being packed and ask where you should keep it. You sound pretty organised. I had to rescue damp, used towels from being used to pack bathroom stuff on moving day so make sure you stick them in a bin bag in the car. Empty bins and hang a bin bag somewhere so rubbish doesn’t move with you.
Ours did a day and half before moving day. On the day before, they started loading the van and it went to their secure warehouse overnight. This meant we could clean easily and weren't tripping over boxes.