H.W.
One suggestion-- if you have toys available, use some of those plastic links to join them together... that way, if one drops, you can just pull them up with that. (I did this for an airplane ride-- was great.) I packed a few favorite board books, toys for my son to play with (slid the links into the loops of the tags) and lots more food and clothing than I thought I would need, because sometimes you get stuck, right? I also packed a few swim diapers-- when the restroom was busy, we could get the old diaper off relatively easily with my son on my lap (wet diapers, that is) and could slide the swim diaper on him. He was about 9 months old when we went. (note: the swim diapers are less absorbent, but if you can't find a place for him to lie down to put on another one, this or a pull-up will work well in a pinch. )