A good way to revise your essay is to see what is relevant and what is not in your essay.  To do this, print of a copy of your essay and write down your thesis on a piece of paper.  For my paper my thesis was,"What relationship is shown between what a person wears and how other people see them?".

Once you have done so physically cut your essay into individual paragraphs and mix them up so the original order is lost.  Pick out the paragraphs that do not add to your thesis or further your paper.  Determine if they content in your paragraphs are providing evidence, explanations, or illustrate the main ideas.  A few of my paragraphs did not add to what I was saying but I did not throw them away because I could revise it to use the discarded paragraphs later in my essay.

You should have two piles of paragraphs, one pile is the one that you will keep and the other is the paragraphs that you will revise or throw out.  Mix up the paragraphs into two different ways for your essay to flow.  For my essay I changed by content around put kept the introduction and conclusion the same.  In my essay I had information that had to stay in a certain order for the essay to make sense but if you were to follow closely with the new order it could make sense to some degree.  This did help my essay because I was able to see what needed to be changed to make the essay better.  For example I could see where my content could work in different places and I was able change the content of the paragraph to flow smoother.
After you are done with all of these processes then go to the electronic version of your essay and revise your essay using the new order that you have created with the scraps of paper.  It is okay if your essay is completely different than what it looked like in the beginning.