I just found out about "Parkinson's Law", which simply stated says that "work expands so as to fill the time available for its completion". Students, take note! You could spend hours in the library procrastinating on Facebook and saying you don't have time to hang out with your friends, or you could hang out with your friends and then do the work on a deadline and get it done decisively.
I wish I was writing up something myself but this Economist article from 1955 is too perfect to not share. The full article is available here: http://www.economist.com/node/14116121
"Factor I.—An official wants to multiply subordinates, not rivals; and
Factor II.—Officials make work for each other.
We must now examine these motive forces in turn.
The Law of Multiplication of Subordinates
To comprehend Factor I, we must picture a civil servant called A who finds himself overworked. Whether this overwork is real or imaginary is immaterial; but we should observe, in passing, that A's sensation (or illusion) might easily result from his own decreasing energy—a normal symptom of middle-age. For this real or imagined overwork there are, broadly speaking, three possible remedies
(1) He may resign.
(2) He may ask to halve the work with a colleague called B.
(3) He may demand the assistance of two subordinates, to be called C and D.
There is probably no instance in civil service history of A choosing any but the third alternative. By resignation he would lose his pension rights. By having B appointed, on his own level in the hierarchy, he would merely bring in a rival for promotion to W's vacancy when W (at long last) retires. So A would rather have C and D, junior men, below him. They will add to his consequence; and, by dividing the work into two categories, as between C and D, he will have the merit of being the only man who comprehends them both.
It is essential to realise, at this point, that C and D are, as it were, inseparable. To appoint C alone would have been impossible. Why? Because C, if by himself, would divide the work with A and so assume almost the equal status which has been refused in the first instance to B; a status the more emphasised if C is A's only possible successor. Subordinates must thus number two or more, each being kept in order by fear of the other's promotion. When C complains in turn of being overworked (as he certainly will) A will, with the concurrence of C, advise the appointment of two assistants to help C. But he can then avert internal friction only by advising the appointment of two more assistants to help D, whose position is much the same. With this recruitment of E, F, G and H, the promotion of A is now practically certain.
The Law of Multiplication of Work
Seven officials are now doing what one did before. This is where Factor II comes into operation. For these seven make so much work for each other that all are fully occupied and A is actually working harder than ever. An incoming document may well come before each of them in turn. Official E decides that it falls within the province of F, who places a draft reply before C, who amends it drastically before consulting D, who asks G to deal with it. But G goes on leave at this point, handing the file over to H, who drafts a minute, which is signed by D and returned to C, who revises his draft accordingly and lays the new version before A.
What does A do? He would have every excuse for signing the thing unread, for he has many other matters on his mind. Knowing now that he is to succeed W next year, he has to decide whether C or D should succeed to his own office. He had to agree to G going on leave, although not yet strictly entitled to it. He is worried whether H should not have gone instead, for reasons of health. He has looked pale recently—partly but not solely because of his domestic troubles. Then there is the business of F's special increment of salary for the period of the conference, and E's application for transfer to the Ministry of Pensions. A has heard that D is in love with a married typist and that G and F are no longer on speaking terms—no one seems to know why. So A might be tempted to sign C's draft and have done with it.
But A is a conscientious man. Beset as he is with problems created by his colleagues for themselves and for him—created by the mere fact of these officials' existence—he is not the man to shirk his duty. He reads through the draft with care, deletes the fussy paragraphs added by C and H and restores the thing back to the form preferred in the first instance by the able (if quarrelsome) F. He corrects the English—none of these young men can write grammatically—and finally produces the same reply he would have written if officials C to H had never been born. Far more people have taken far longer to produce the same result. No one has been idle. All have done their best. And it is late in the evening before A finally quits his office and begins the return journey to Ealing. The last of the office lights are being turned off in the gathering dusk which marks the end of another day's administrative toil. Among the last to leave, A reflects, with bowed shoulders and a wry smile, that late hours, like grey hairs, are among the penalties of success."