Decision-making is a critical procedure to perform with care and attention to detail. Well-made decisions lead to optimal outcomes. A given decision involves analyzation of the situation at hand and value-assigning of desires and goals in aspects of the choices involved. This comparison between choices available can become the dominant phase of decision-making, in terms of time consumed.
It is essential to be aware of the time involved in making any given decision, as time is precious and scarce. A relative value of the decision as a whole on the scale of importance across one's entire life could be determined. This could be used to assess how much time should be spent, at most, in making the decision. This self-imposed time limit will prevent one from spending an inordinate amount of time making any given decision.
However, one can argue a great deal of conscious thought is spent making decisions at any time, and so the amount of time spent simply assessing the importance of a given decision is also something to consider. Perhaps an initial time counter or alarm can be used to trigger further assessment of how much time is spent making a decision.
Indeed, a certain amount of self-awareness, when it comes to decision making, is crucial.