Someone once told me I was suggestible. And I believed them. A couple of Christmases ago a friend was commissioned to write a New Years resolution piece for a national paper. She was to write about her attempt to give up smoking. Come 1 January she would be giving up with Allen Carr’s Easy Way to Stop Smoking. I had never heard of him or his method. On the way home from the pub I popped into a book shop and found the self-help section with its...