>Break tasks down to granularity of 1-8 hours. No more than that. I do this for sub-tasks that are relevant to myself only (for example, "create function to do

>Break tasks down to granularity of 1-8 hours. No more than that. I do this for sub-tasks that are relevant to myself only (for example, "create function to do X"), but my minimum estimates are 1/2 a day (in extreme cases like a 1-line fix) or 1 day for anything that goes to a manager.