In some parts of Southwark yellow triangles have been painted on walls. Mostly on council estates and they indicate you can leave your bulk rubbish to be collected without making a specific arrangement.

Obviously they create real eyesores and uncontrolled dumping including items that bulk collection people can’t remove. This ‘yellow triangle’ service appears to be being removed but below photo shows how confusing this can get. Yellow triangle to say dump rubbish and then a sign that could have been placed over the triangle saying you can’t dump rubbish. Confused. The residents I spoke to certainly were.