We've been able to make due with two cars, but buying a decent used car from a neighbor with little effect on insurance cost would be a tempting option. DD got her license in December. Because I work from home, she was able to drive herself and DS1 to school pretty much every day with the occasional exception if I had an appointment I needed to drive to. Unfortunately she refuses to learn to drive DH's manual transmission which would give us a bit more flexibility. This summer her job includes transportation.
I am looking forward to her being away at college this fall - insurance company said to let them know and our rates should go down.