Hey, do you know about the tag #cleanplanet? It's a movement here on Steem to get people to pick up litter. You take video or photos of yourself, something that you wrote the date on it, and picking up the trash and tag it #cleanplanet. You can find lots of examples on their blog @cleanplanet!
Thank you for doing this volunteer work! I agree that was pretty thoughtless of them to have single-wrapped plastic for the snacks, though! O.o