Managers need to preplan each and every activity they are supposed to in a planner/notes and than should make a note of those which stand high priority for the day and should follow the flow by finishing of those which stands important and should also ensure that in mean time they won't miss anything
a well skilled person deos not need to plan a workday a manager will work in full strenth power with good care and interest all this leads him to finish the workday in a goodday.