I multitask everything but analyze: what's the actual cost? Map multitasking habits: working while in meetings, emails while on calls, multiple browser tabs. Calculate: if task-switching reduces efficiency by 40%, what's the time lost? Show me the multitasking penalty: nothing done well, everything takes longer. Give me the single-task protocol: one thing at a time, complete it, move to next. Include: where multitasking is destroying quality and speed, how to force single-tasking, and whether sequential is faster than parallel.