Trev or his handiwork can be seen all around Darwin and I believe Palmerston. He walks the main road footpaths gathering small piles of litter and generally tidies. It's my understanding that local council outdoor workers then pick up the rubbish. I saw him this morning in fact.
He won a NT Pride of Australia Award in October last year:
"Rubbish Warrior Trevor Jenkins, who won the Environment Medal for his efforts in cleaning up roadsides around Darwin, said everyone can contribute.
"I feel very honoured but it's something we can all do," he said.
"I see heroes every day." See that story here.
