Luxury Christmas for Less

Sabrina Grant and Helen Skelton speak to former supermarket insiders and uncover what the stores know about people's tastes and shopping habits - and reveal how consumers can use that knowledge to get a brilliant Christmas at bargain prices. Retail psychologists explain the covert role of party food in getting customers to spend more than they need to, and why they are wasting money on champagne when they could buy just as good fizz for half the price.