Laura Dillon smiles with pride as she tells the story of how her grandmother became an unlikely entrepreneur. Widowed with six young children during the Second World War, her granny decamped the family to the north Dublin village of Skerries to open a shop. Every week, she travelled into the city, sourcing goods to stock the shelves. Quickly, she realised that many of the products she was buying were not available in war ravaged Britain, so she launched a mail order business sending packages across the Irish Sea. “She needed to make ends meet,” Dillon says, “so Granny became an…