My wife and I just bought a 2nd car (a Toyta Prius) two weeks ago. Most often we still leave both of them at home, she rides the bus and I cycle.
The only time I take the car to work is if I must run an errand (i.e. pick up bricks at hardware store) or appointment (i.e. dr. appt 10mi away on 1hr. break) that can not be done on cycle only.
Al