One common food shopping mistake could be costing households an extra £300 on their overall bills, according to a consumer champion website.
Which? published a new checklist of money saving tips for shoppers and found that smaller convenience stores were higher in cost compared to larger supermarkets.
The consumer champion website compared the prices of 48 items at two convenience chains - Sainsbury's and Tesco - and compared them with their supermarket counterparts, reports The Mirror.