I had a day away from real work yesterday at the Hampton Court Flower Show, where uncharacteristically so far this summer the sun shone all day.  Amongst the show gardens, floral pavilions and posh welly boot stalls there were many opportunities to cool down, with a (plastic) glass of Champagne, a (vastly overpriced) jug of Pimm's or a 99 ice cream cone (£2.50) from this vintage Mr Whippy van.  Just the sight of it rang Pavlov's bell in my head, or perhaps I heard the Greensleeves chimes.  And they say nostalgia isn't what it used to be.