Marks & Spencer, the high street retailer, has launched an food offer encouraging customers to “dine in” this weekend. The group is offering a meal for two and a bottle of wine for £10 across its UK stores. An advert published in several national newspapers says: “Dine in with restaurant quality food at home this weekend. “Visit your local M&S store between now and Sunday and choose from a selection of main courses for two, side dishes for two, a dessert for two and a bottle of wine all for just £10. Enjoy.”