Writing every day: is it necessary? Is it useful? Some people swear by it: ‘writers must write every day, in order to succeed’. Others disdain it: ‘what a load of codswallop’. (And isn’t that just a great word?) Some people roll their eyes and tell you it’s all just another useless debate about how to become the next JK Rowling or Stephen King… something that’s fairly unlikely to happen, for most of us. (Why waste our time trying to be the next whoever, when we can be the first us?)  Where do I sit?  Well, to start with, I have one firm writerly belief: all writing is good writing. Even…