Britain's Secret Shoppers
Britain's Secret Shoppers
Cars (1x1)
: 14, 2013
Justin gives Jan a crash course in how to haggle thousands of pounds off the asking price when buying a car.
He also goes undercover in The Dollshouse, run by glamourpuss Cat and her pal Mark, who need some help with their sagging bottom line.
And Which? reveals some raw deals at the supermarket with our recommended five a day.