5) Figure out which people rely on you and how you can help them be self-sufficient. You may feel important having a monopoly on salmon provisions, but if the whole village learns how to fish, it'll free you up to do something else. Like figuring out how to grow wheat. Or how to domesticate those cute wolf-pups.
8) Sweep up the crumbs. Wipe the tables. Turn off the lights. Plug the holes that need plugging—even if it's menial, even if nobody will know you did it. Do it in service of the product, the company, and this wondrous, magical thing you are all building together.