How often do you text while driving?

A friend shared this PSA today, and I found it incredibly difficult to watch. A lot of senseless tragedy.
I, personally, made a pledge not to text and drive several months ago… and found it remarkably easy to stick to. However, most of the people that I know text almost non-stop while driving. I nag my husband incessantly for doing it, I find myself dreading the worst, not unlike drinking and driving.
What about you? How often do you text and drive? Do you think it would be a difficult habit to break? Do you ever feel guilty or second guess your decision to do so, or does it not really cross your mind?