Don't worry about the extra layers, I read on the Enchanted Circle you can drop them off at one of the rest stops! I am sure they have an organized way of tagging them. Oh and everyone is right, don't let the jitters get you too wound up. Before our first MS150 (probably the most nervous I have ever been) I hardly slept. I paid for it by being sick the following Tuesday. I slept 16 hours.
Amanda
2011 Specialized Epic Comp 29er | Specialized Phenom | "Marie Laveau"
2007 Cannondale Synapse Carbon Road | Selle Italia Lady Gel Flow | "Miranda"
You don't have to be great to get started, but you do have to get started to be great. -Lee J. Colan