How can you practically prepare for death?

Luther:

You have to take your leave bodily and spiritual. Take care that your earthly goods are divided in a good and honest way, so that after your death there is no reason for hate and envy or any other misunderstandings. Besides, forgive all people who have offended you from the heart. And ask forgiveness of all people, to whom you have done something. This is necessary so that the soul does not worry about an earthly issue.