Collapsable cooler, lanyard for room key, large n small baggies, trash bags, dryer sheets keep clothes in suitcase fresh,lip balm... All items I have forgotten but now first in the bag.
Used to take two suit cases for one dude. - yes I know. Dont pick me as your amazing race partner...
Pared down to carry on worth if not for not being able to take on liquids (sun tan spray)...
Good topic!