About eight years ago, well before I got pregnant with my first child, I used to commute by bus to the busiest downtown area of San Francisco. I live in one of the busiest and more touristy areas of the city by the bay, not too far from the famous Pier 39 and very close to delectable Italian restaurants. At that time the traffic in the city was definitely not as crazy as it is now, but it was already busy at peak hours.