transportation options

There are several ways to get to school from my apartment which is 2.2 miles away. Organized by minimal impact and speed.

1. Bicycle | 15 | this is the second fastest way to get to school, no energy use, gives me exercise. The bad is that you have to overcome the psychological and physical hurdle of getting the bike out and then humping over the hills to get to school. Plus cold, rain, wind, and traffic.
2. Walking | 50 | no matter the route, it always takes about 50 minutes on foot. It's not bad, really, and the walking is very beautiful for the most part, but the time cost is huge. So is the risk of walking back late at night. 
3. Light Rail | 30 | Combines roughly a twenty minute walk down to the station with an additional ten to fifteen minutes of waiting, riding, and walking to school. Lots of walking involved, but there's two steep hills to climb up and down. Lower environmental impact, cleaner, shorter, and overall a better experience than with the buses. Also a really shady long walk home at night along a pretty deserted street.
4. Bus | 30 | The bus picks up in front of the grocery store about a ten minute walk away (with little elevation change) and drops me in front of the architecture building. The downside is spending 20 minutes on a public bus. 
5. Car | 5 | Well, maybe closer to ten minutes after factoring in pulling out of the garage, parking, etc. But still the fastest and easiest by far, as well as being the least environmentally friendly.

So far we've been mostly hitting the car option, although I'd really like to get more into walking. I guess the ideal would be the light rail in the morning and the bus back at night. A longer AM walk, and a shorter PM walk.