Do you work with a specific community or organization, or just take opportunities as they come up?
What type of volunteer work do you like to do? Do you like the stuff where you are just a warm body - someone to hold a sign or greet people? Or more involved tasks that are more like professional work? What about shudders door knocking?
I was just thinking I would love to volunteer regularly. Completely forgot that the position I have within the org for my favorite hobby is actually a volunteer position. I joke I do the least that gets called an organizer.