Today I would just encourage you to spend some time with your essays. If you have not finished them yet, complete them today. This will allow you to have at least one additional day of proofreading. Remember, in the essays we are looking for a tight message around where you have been in the past, where the MBA fits within your career plans, and where you want to go after obtaining the degree.
Oh, and don’t forget the “McCombs Love” (i.e. why you want to come to school at Texas!).