OK, so , I got my SYR package in to ship 2 snakes to this person I am snake sitting for. I have never done this, so I am getting some advice, and obviously, I know they go one in each bag, the warmers wont need to be activated until I am about to close the box up at the fedex location I am shipping from, putting newspapers in to help less jostling. But I am just making sure I am not missing anything, so go ahead, tell me what to do!! lol