Just my 2 cents from my experience last year, try to have everything except perhaps your last review of the essays all done before classes start again in the fall I found that I had no time to do more, and was very glad that all I had remaining was last reviews of the essays. Also try to ask your Lors ASAP if you haven't my advisor did one of mine and she said that some of my peers waited until the last week to ask that didn't leave her anytime, and she didn't feel she was able to give the quality recommendation they may have deserved. Good luck to all of you and congrats to those that are already almost ready to submit!