ACCC report finds Australians have lost trust in supermarkets as it focuses on Coles and Woolworths' market power and barriers to entry  ABC NewsHow a Caramello Koala helped catch Coles and Woolies out  The Australian Financial ReviewACCC Woolworths Coles: Supermarket CEOs to face second grilling as grocery prices rise 20% in 5 years  Sydney Morning Herald10 ways supermarkets trick you into spending more  Courier Mail