Locals are invited to attend a free, open event to keep cigarette waste off the street and out of landfills at Preston's Colfax Clean Butt Crawl August 19 at 5 p.m. A community cleanup and birthday celebration in one, participants will meet at Prohibition (http://www.prohibitiondenver.com) and split into teams to gather as many cigarette butts as possible; the team with the greatest amount of cigarette butts will be rewarded with a prize. All cigarette butts collected will be recycled through TerraCycle’s free Cigarette Waste Recycling Program. “The purposeof this event is to encourage others to prioritize keeping Colfax Avenue clean,”said Preston Murray, Preston's Colfax Clean Butt Crawl organizer.  “I have planned it around my birthday to leverage the people who care about me to care about donating their time to benefit Colfax and the cleanliness of our city in an effort to clean as much of the neighborhood in which I work and live around the occasion of my next year of life.”