Older readers may remember the big hit of the summer of 1960, Itsy Bitsy Teenie Weenie Yellow Polkadot Bikini. It tells the story of a nice young girl who has put on a bikini but is nervous about showing herself in public. The song reached No 1 in the US and New Zealand, and is credited with having helped change forever the dress code at the beach. Before Itsy Bitsy, bikinis were considered very naughty; after Itsy Bitsy they remained naughty but became more or less mandatory. The point has now been reached where a woman in a bikini provokes no more controversy than a woman in trousers. Oh, wait ... the Rt Rev Richard Williamson might have something to say about that.