Part of Jak’s mini-empire of bars on Walton Street, this casual, cheery Italian-style café-bar (formerly Vendôme) covers all bases. Pop in for eye-poppingly robust macchiato or latte with pastries. Otherwise, order a trad Roman sharpener, wine by the glass from £6.50 (for Pinot Grigio) and an informal lunch of pizza, lasagne, meatballs, fish pie (£14.50), or one of various vegetarian choices including stuffed aubergine. The squishy, stripy low-slung sofas and the charcoal padded banquette (positioned under display shelves crammed with curios and retro kitsch) are in high demand when Chelsea lounge lizards come out to play. Aperitivo-hour staples and cocktails are what to order as the vibe cranks up. In this gilded postcode nobody bats an eyelid at £12 for a humble Bramble, or a passion fruit, watermelon or strawberry Martini. Likewise, Champagne (Perrier Joüet at £60), or Champagne cocktails – such as peachy Debonair – are de rigueur.