Cast your mind back to the Seventies and step inside our corner caf. With its Formica tables and bench seating, the greasy spoon was a den of fry-ups washed down by sugary drinks and milky tea. Coffee was only served one way and chips came with every meal. Fast forward to the present day to a world of mochas, lattes and milk done a dozen different ways. Is the modern version of the caf still chips with everything or has it become more caffeine and protein powered? This is the scene you have to puzzle.