Prioritising activities is a constant challenge.
Most small business people see the task only in terms of money, or the apparent urgency of the matter. Few consider that their time is the most valuable resource the small busines has, yet they willingly spend huge hours at their desks.
Your time should be like a supermarket shelf, to put a new product in, one must be taken out. Exercising the same discipline to the tasks for which you allocate your time will gradually see a priority allocation system evolve as you remove the sometimes urgent but not really important tasks in favour of the more important tasks.