Revision
Cramming is like going on vacation.
When you get ready to go on vacation, you generally start planning at least several weeks beforehand. You know where you are going, what you will be doing, what the weather will be like, etc. You probably even start making lists of things you don't want to forget, and you probably start putting things aside to take along. As the departue date nears, you begin to pack your suitcase. Most of the things are folded neatly and arranged in an organised fashion. However, as the time to leave gets closer and closer you may find yourself putting an extra blouse or shirt in, or taking along an extra skirt of pants. The closer the time gets, the more you are tempted to pack because you want to be prepared for any occurence.
When its time to leave, you may have a hard time closing your suitcase, and you may find that little pieces of material are sticking out of it, once it is closed. When you reach your destination and open the suitcase, everything that was tossed in at the last minute spills out onto the best; everything that was packed in an orderly, organised fasion is s till that way.
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