Look over your application again and ensure it is complete. This should be pretty easy to do, as all required fields in the application are properly flagged for your convenience (with red asterisks).

Take advantage of the weekend to spend some time fine-tuning your message and ensure that it is cohesive. Remember that optional essays are optional (i.e. only write if you deem them necessary!). A great tip is to have someone proofread the essays without the essay prompt/question. Once they are done, you should ask the reader if they could tell what questions were being asked by the admissions committee. If your reader guesses the question correctly, it means you are on target on your essay content!