I am sure all of you have heard of the 80/20 rule or the Pareto principle? The 80/20 rule says that very often things could be achieved much easier, faster and with less trouble by focusing on the top 80%. It states that often 80% of the effects are caused by 20% of the causes. So don't go for perfection, just go for what would be good enough to get 80% of the benefit. In many cases that could also be translated to what or how much would be good enough if you don't want to make it perfect.