In a post apocalyptic world, what would you find to be of value to you and necessary to your survival?

Considering an apocalyptic nightmare were to happen in your lifetime and you were to survive, what would you consider of value to yourself to continue you or your families’ survival? Money would mean nothing… but there are certain skills, materials and thoughts/ideas that would help a person survive beyond/over another. What would you consider to be valuable to that survival and help to continue your very existence? Would you want to continue that existence considering life as you know would be completely turned upside down and you would have to fight minute to minute for your very survival?