"depending on the size of the school and/or how big your social circle is, however, you might be able to get home with friends. that's what i used to do for holidays."
-EJFan
I second this idea. Maybe you could convince your friends to go 99.9% bicycle too, keeping 1 (or at least fewer) vehicle(s) which you can split the insurance on (will probably be less than renting a car every now and then) for travelling home.