Biscuitsmom31 and others, I always take a small (a bit over a foot square) fan with me. I have asthma and enjoy the air as much as the noise.
I also take my own pillows and a set of sheets to throw over the comforter.
I have one suitcase set aside just for our Disney trips and keep my just for Disney things in there (please do not ask for a listing and you will not feel the need to flame me).
I am also one who occasionally takes my own small private microwave. With this trip and all the free food the microwave will linger in the closet. I would write more about how clean I keep things, how I unplug it, medical issues ad naseum etc. etc. but some of you do not care and those who do would just feel the need to rain on my parade.
This trip I am taking a small vcr to tape our shows while we are out and about. We like being able to see our shows before we go to sleep no matter how late at night that might be. (rest assured I am a qualified technician in how to do this safely)

I wish that Disney would either provide a vcr in each room or at least have a way to repeat the best shows of the evening later on at night. They surely ought to be able to do that with the ABC schedule.
When I start needing to take my own mattress I will retire from traveling.
Slightly Goofy (who is ducking and running from the onslaught)