The theme of this year's National Consumer Week is 'cold calling - don't buy it!'
The Trading Standards Institute is calling on people to get tough on cold calling which it says is not in decline and vulnerable people are being targeted.
It has created stickers to put on your door to tell rogue traders to go away. If they refuse to go away it then becomes a criminal offence. People are then encouraged to phone the police.
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People took to the streets of Brixton today to march against what they see as the 'gentrification' of the area.