I rarelly actually run stop signs. I do, however, slow down and roll through them.

If I'm biking on side streets and there's aren't any cars, I won't do a complete stop, but if there cars coming to the intersection or i can't see the road for a good ways down, I will slow down to an almost stop.

When I'm out in the country and I come to a 2-way or 4-way, I won't stop if I can see 50 - 100 yards down the road and it's clear. At that point I don't feel bad about not following that law because it's unpractical.
If there was a chance of a car coming would I stop, ofcourse. But not if I'm certain there won't be.