Don’t tweet during “Breaking Bad”
Depending on what you've been reading lately about the futility of multitasking, trying to tackle more than one mental chore at once will make you inefficient, fat and/or potentially unable to keep track of how many shots a basketball player is making while a man in a gorilla suit walks by.
However, it's been posited that "under special circumstances, people can do two different tasks at once without much interference, particularly if the tasks are well-practiced and do not physically conflict with each other." I don't brag about this on my LinkedIn profile, but I have at least three years' experience working my Android Twitter feed and Verizon FIOS TV remote SIMULTANEOUSLY, like a boss. It's heartening to hear I might actually be accomplishing something amazing.