I can do without absolutely everything I currently have.
I can't do without love. Love of my wife and children. Love of my parents and relatives. Love of my God and brethren. Love of my friends and enemies (ok... I can do without the love of my enemies).
But one thing I can do without is a car.
My friends think I am crazy as it is not as if I cannot afford one... but life is simpler and cheaper without a car.