Lisa Braithwaite has a great tip over at Speak Schmeak. What follows is an excerpt:
A lot of people are bothered by the filler words “um” and “uh,” but I’m noticing a far more distracting trend, which is the use of the word “so” to start a sentence.
I typically tell my clients that, unless their fillers are distracting and egregious, not to worry too much about them. After all, filler words are as much a part of communication as other words, according to Michael Erard in the book, “Um… Slips, Stumbles and Verbal Blunders, and What They Mean.”

