Lysol wipes - for the room - also for the tables at QS, and to wipe down the handles of your stroller (really all of it). When you leave your stroller, cast member's keep moving it around at some place's so to be sure. So they are touching a lot of stroller handles, so all the germs are just traveling around... Yuck
Cut up Sponge with dish detergent and a bottle brush ( dollar store) - wet sponge, apply dish detergent, let dry, put in Ziploc bag. We use these to wash out mugs or sippy cups, bottles.
Ziploc baggies, in all size's.
Power strip
Individual snacks, breakfast bars, goldfish, crackers, fruit snacks, for the parks it's just enough for standing in line.
Boo Boo bag - I have a large one in room, and a small zipper pouch in my small crossbody that I carry in the parks w/ Band-Aids, neo to go, tummy pills, Tylenol liquid for kiddos and pills for mom and dad, safety pins, eye glass repair kit and a small needle and thread kit, we have used this several times - I refill every time we go back to the room. DH has one in his travel bag and he has used it himself and helped out some of the other guys out when a button that fell off or a ripped pair of pants.
Static cling spray.
Collapsible cooler for the parks, with those thin gel freezer things, bring extra (3 or 4) so that you can rotate out, when you come back to the room midday - anytime for a break, plus the cooler comes in handy pool side
clothes pins, for curtains, chip bags, hanging bathing suits up to dry.
Paper plates, a roll of paper towels, and plastic utensil's.
Laundry bag
I had to update: I bring those thermacare heat packs, and ice packs the ones you break. I always bring them when we travel.