My #1 is add a recipe to combine 10 doses into 100 doses. Maybe another to combine 100 doses into 1000. Or just make single doses actually stack.... I carry around a full 42 slot bag of 10 doses or a full 20 slot bag of mats to make 10 doses during downtime. Almost everything else in the game stacks to 1000 currently. I'm sure other rogues have more to add, but for me the inconvenience of 10 doses(but hey zerker consumable axes stack to 1k, because their convenience matters, right?) is one of the worst things about poisons.