Halifax, HSBC, Santander and Lloyds customers urged to check mobile banking app before every food shop as inflation drops

As inflation drops to 10.1%, prices on the shelves are still high, but doing this one thing could help shoppers save money at the supermarket checkout.

Over the last few months, day-to-day prices have soared, from the cost of filling up the car with petrol to doing the weekly food shop, it's stung billpayers' budgets. Despite the rate of inflation falling to just above 10%, it's not enough to officially feel the effects of deflation, as food prices continue to rise.

At first, the drop in inflation figures released by the Office of National Statistics may come as a slight relief to consumers, but as further highlighted by the office, food like bread and cereals are rising at the quickest rate seen in the last 45 years.

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As the prices of staple food products show no sign of getting any cheaper, consumers are still looking for ways to save as much money as possible.

Getting rewarded for shopping at a certain supermarkets is one of the most common ways shoppers can claim back money, by using the points racked up on the next purchase. All of the major UK supermarkets offer versions of reward schemes, from Tesco's Clubcard points, Asda Rewards, Morrisons' More Card, Sainsbury's Nectar Points and the classic Sparks Card from M&S.

It's not the only step out there for shoppers to save, in fact, there's one cost-effective way buyers can use their supermarket rewards card to its full potential and get an additional percentage of money back into their bank account.

And it's all down to a specific setting on various online banking apps, which shoppers can activate on their debit card before heading to the checkout. The consumer team tried it out on a