A new recycling scheme will be rolled out across southwest London.
Ker-ching will be led by the South London Waste Partnership, as a joint initiative between Sutton, Merton, Kingston and Croydon.
The programme will use an advertising campaign to encourage more people to recycle.
Last year the four boroughs saved £5m in landfill tax through recycling 69,621 tons of rubbish.
The councils want to crank up recycling levels to save even more cash in future.
Colin Hall, chairman of the South London Waste Partnership Joint Committee, said: "Whether it’s plastic, bottles, paper or glass, recycling will help to save your community money that can be spent on other services."
Last year 37 per cent of domestic waste collected in Sutton was recycled.
Ker-ching will run through June to July.