It can’t be stressed enough- go over your essay with a fine-tooth comb and then offer it to others to do the same. Don’t be shy, share it. Remember the basic rules of spelling and grammar because they WILL be noticed. This is not the time to allow yourself to get sloppy. Your writing must be polished and meticulous.
Finalize and send it in.
Be detail-oriented about your essay. Even the smallest detail is relevant to the finished product. Go back to the guidelines that were provided with your application and make sure you followed them to the letter. Once this is done, print out your essay, add it to the rest of your work and send it in.