Today's work should be completed today itself. If it is to be carried to the next day, for unwarranted reasons, it invites trouble. We need to be disciplined to be systematic to arrange all our duties for the day, with a schedule and proceed with it, according to our plan, as may be required for that particular job / jobs. Contingency management should be kept in place for an unexpected change in the scheduled plans.
By this, we do not carry any burden of that day to the next day. This will in turn, bring peace of mind, leading us to good sleep at night.
A systematic person can, not only bring in discipline in himself, but also set a precedence to the others to follow suit, by his good virtues.
Self development is also achieved by Self Discipline. Try to follow it.
Have a wonderful day...