Welcome to a guest post from Tracy. I'm not sure that any of you will have encountered Tracy before as she tweets on a locked account simply because of the nature of her job - more of that in a minute. I know Tracy from a forum we both joined many moons ago. Neither of us post on the forum any more but our friendship continues. When you read her post, you'll understand why I'm in awe at what she does, so naturally, every day of her working life.
Tracy doesn't have a blog but she should - she's such an amazing writer. Please join her in a discussion in the comment section.