On clean-up days, begin by setting up a place where trash can be sorted.You will need to be able to sort litter that can be recycled and litter that can be reused and litter that will need to be hauled away. Then assign volunteers to different sites along the stream. Each volunteer should have a buddy, and you should try to spread people out to cover the largest area possible. Finally, pass out gloves and garbage bags and tell everyone to get busy.