-I always make sure to bring some snacks/breakfast items, bagels, granola bars, instant coffee, etc
-Over the door shoe organizer (from dollar store) For toiletries/makeup/hair stuff, or even shoes! lol
-Extra bag for dirty laundry!
-Echanecia/Emergen-C or some kind of variety! (and hand sanitizer) Disney obviously has germs everywhere, and while I'm not a germaphobe, I do like to make sure my hands are sanitized before eating. AND with being out and going for so many hours each day, and not sleeping a lot, I find I almost always come home with a bit of a cold. If anyone is susceptible(?) to being sick, think about bringing some basic cold meds with you, that stuff can cost an arm & a leg on site
-Extra phone cord charger (again, super expensive on site, never know when it's gonna break)
-Travelling with young/teen girls? We bring our own "pixie dust" aka, fine glitter (and a lush massage bar that puts glitter on arms really well), makes things more magical! lol