Don't tar new partners with old brushes RULE 16 Most of us have a past of some kind. Even very early on, the most innocent of teenage romances leaves us with some kind of history. And it's very easy to let that get in the way of the next romance. We're programmed to assume that the future will work pretty much the same as the past, unless there's a good reason to think other- wise. If your hair has always looked smarter brushed in the past, it's