Number of Britain 's highest earners going to pound stores is now up 20 % . More than half of all shoppers say they head to pound shops each week . Experts say they are topping up their weekly shop , often from Aldi or Lidl .
Number of Britain 's highest earners going to pound stores is now up 20 % . More than half of all shoppers say they head to pound shops each week . Experts say they are topping up their weekly shop , often from Lidl or Aldi .