Ahhh, the famed Letters Of Recommendation. These constitute the part of your application over which you have the least amount of control, so it's natural to be nervous about them. I would suggest getting the request forms to your recommenders ASAP.
Oh, yeah, I almost forgot, you asked about the LSAT. Don't worry about it, and don't study Friday. Not even a little. Get to bed early, eat a proper breakfast, and do some gentle warmups before the test.