People of a certain age remember when "don't litter," was at the forefront of everyone's consciousness. 47 years after Keep America Beautiful 's famous public service announcement admonished "people start pollution; people can stop it," it doesn't seem like we've gotten the message. With two Superior Coastal Cleanup events behind them and the last one scheduled for October 6, the Duluth Parks Department and a host of volunteers are finding ... litter on our beaches: fast food wrappers, cans and