This video series is too good - had to post it. Starring Marty, of the Surfrider Foundation's San Diego Chapter.
PLEASE don't water your driveway ... or the sidewalk.
And while I'm on requests, if you are a smoker then please "hold onto your butt." Cigarette butts are NOT biodegradable. The cigarette filter is made out of PLASTIC.
More info about the problem can be found here. Check out this personal, pocket-sized ashtray!