A timebox needs an output, not just a timer. Decide what should exist after twenty-five or fifty minutes.
Remove obvious interruptions and begin with the next visible action. When time ends, stop to record progress, gaps, and the next step.
Then choose deliberately: continue with another box, deliver the current version, or reschedule. Do not let every timebox expand automatically.
Use longer intervals for deep work and shorter ones for aversive entry. The box limits exposure and creates feedback; it does not guarantee completion.
Related reading
- Continue with using the five-minute rule carefully.
- Continue with estimating task time more realistically.