Procrastination, beneficial or harmful?

The present world has shown us beyond proof that almost all humans has exhibit a degree of what I call 'Procrastinating spirit'. Though this degree varies among us all yet we all exhibit it. What makes it an issue is whether procrastination really affect us positively or negatively.   Procrastination has been defined as the act of postponing, delaying or putting off especially out of habitual carelessness or laziness.. see source  http://en.wiktionary.org/wiki/procrastination. A popular adage says "don't do tomorrow what you can do today" which implies that procrastinating is very bad. It even shows one is not disciplined enough to keep to rules. Procrastinating or postponing things will should do immediately can have a negative impact in us. Come to think of it, you have a customer you have promised to help with the work he employ you to do, but you are busy postponing the work, is that really fair?. Time is very essential to us as human beings, let is endeavor to utilize this time wisely. Remember time wasted can never be recovered. Thanks