I don't care what most LCF'ers have to say about this....If this happened to me I would purchase a small, used, fuel efficient car and keep it as a back up. I would still commute to work with a bike, and I would use a car for trips which involve carrying and infant., and I would let the wife/girlfriend use the car whenever she is going somewhere with a baby. The most practical thing to do in such situation is to get a car.