Stroller, diapers (3 times as many as you think you need — they don't sell them in airports),
wipes (travel pack or 2), disposable changing pads (Target sells»em — very
handy for the «ewwwww factor of changing baby in a public restroom), few favorite toys & books (does mean that you have to be vigilant about not dropping / losing them), changes of clothes (I took 2 for baby, 1 clean shirt for myself), favorite blanket, a burp cloth, baby Benadryl *, and pacifier (even though baby didn't regularly use one, we had one on
hand!).