Walter White memoirs
During the 6 months he was isolated away in the log cabin wouldn't it have been a decent idea for him to write his autobiography.
He could actually set the record straight clear a few people and blame others in the process.
It was obvious in the end he was in someway proud of what he had achieved as this drug lord.
The issuing of his memoirs after his death would have lead to even more fame and legend of his great American drug kingpin reputation.