My commute is 8 minutes, but the long road has no sidewalk or shoulder and way too dangerous for a bicycle or scooter. Speed limit's 50, but if you're below that, the folks with long commuting times are right up on your butt.
I try to save starting the 300TD unless I have at least one other place to go.
Even dropping off the kids at school is fine because it allows for some engine idle time.
I use the motorcycle whenever I can.
It allows me to create a nice distance away from insane commuters due to size and acceleration.
I'm aggressively cautious, with extra bright lights on the bike.