Use a one-minute cadence: ten seconds to observe signals, twenty to orient with goals and constraints, twenty to decide the next smallest reversible step, ten to act and log. Repeat until momentum builds, or pause deliberately when a genuinely high-stakes fork appears.
If a task will take under two minutes, finish it immediately; otherwise, capture it and batch similar items. This boundary empties mental RAM, reduces switches, and creates visible progress. Many email replies, calendar updates, and household resets qualify and vanish quickly.