I totally understand your trouble sleeping, Susan! I can't stand it! I mean, I can't believe we are going to be there next week, and at the same time, I can't imagine how I am going to get through the next week. Do they make a pill for this addiction to Disney? A 12-step program perhaps? As a friend of mine who lives down there says...I couldn't make it past the 1st step anyway.
Yes, I have a problem. No, I don't want to do anything about it...except return to WDW.
When we went down there last December, I packed a lot of long- and short-sleeved T-shirts (that way I could wear the short-sleeved over the long-sleeved if necessary, and it was), hoodie sweatshirts, jeans, capris, and shorts. This year, I also have some of the roll-up capris that can be pants too, so I will be taking those.
As for
MVMCP, don't forget the hot cocoa and cookies stations and the characters dressed in their holiday attire! Also, the parade is very cool, and you absolutely, positively DON'T want to miss Holiday Wishes! Someone told me that last year, and I thought to myself, "Well, duh!" But I was also thinking, "How much more 'wow' could it really be than the regular Wishes!?" Trust me! It is WOW! I will not say how or why, but I was so surprised at one point that I said a very non-Disney word to express my awe. Fortunately, I don't think anyone heard me.

DH didn't, and he was right next to me.
Also, it looks like you are going to be at one of the MVMCP's that we are attending. Would you like to meet up?