$20 a week, BUT I car share with 3 others. If it were just me, it would be $80 per week.
I visit my boyfriend using the train for $8 return. Driving would cost at least $25.
From September I'm walking to school most of the time, so my costs will be almost nothing. If I can get my bike down here I may not even need the car at all.
It's $10 a gallon here; it's not an option to commute long distances any more.