As environmentally conscious as I'd like to be, there is a darned good reason why I drive myself to work every day instead of using public transportation. It would be silly for me to ride the bus.
I was playing around on Bistate's TripFinder to see what my options could be if I chose to not drive. I won't post my exact results (with bus #'s and times), in the interest of keeping my house and my specific job location to myself. Let's just say that I live and work on the north/west side of St. Louis County. But let me compare a few points:
Distance from my house to work via car, according to Yahoo Maps: 11.27 miles, 20 mins
Distance from my house to work via Metro (the best option listed): 11.98 miles, 1h 17 minutes
That's an HOUR difference in commute time. Yikes, for that kind of time I could move out to the middle of nowhere, buy a huge mansion with several acres of gardening space, and still save $ on my mortgage!
Just for fun, I also calculated how long it would take me to get downtown from here. Turns out, I'd be better off working for the Cards:
Distance from my house to Busch Stadium via Metro (the best option listed): 16.83 miles, 59 minutes travelling time
Note that my car gets around 25 mpg, which at $4/gallon comes to about $2 each way to work. Normal metrobus fares with transfers (without purchasing a monthly pass) is $2.25. With the $60 monthly pass, that's about $3.50 a day given my current work schedule. Sure, there's other wear and tear on my car, but my mileage and maintenance needs are low so far (my car's 5 years old, at about 40k miles, and has only needed routine maintenance + hail damage repairs).
This trip doesn't take the kids into consiseration at all--I would probably double my travel time to get them to or from daycare (assuming I could arrive or depart while daycares' even open!).
If I were actually looking to get rid of my commute, there are people I could attempt to carpool with (including my husband). But that makes it impossible to pick up a sick kid from school, or to allow for any flexibility in my workday.
So, for now I drive.