Instead of heading straight to WhatsApp, the notes app, or your phone's camera roll, London-based private investigator Aaron Bond recommends investigating your spouse's Clubcard use.
High street retailer Tesco has hiked the price of its Tesco Finest dine-in meal deal, available with Clubcard, which includes one main, one side, one dessert and one drink.
Weeks before the launch of Tesco's Clubcard loyalty scheme in February 1995, Italian-born Frank Riolfo worked out an ingenious but terrifying way to demand £250,000 from the supermarket.