DO: bring chocolate covered marshmallows on a stick, a dozen lollipops, have cookies to give to the nice man sharing an arm rest, search for all babies and dogs in the SkyMall magazine, decorate the nice man's arm with sticky miniture frogs, sing eency weency spider soft enough not to further disturb the lady in front whose feet are shuffled when child gets stuck under the seat, turn on the overhead fan when child messes diaper before landing when seatbelt sign is on.
DON'T: bring playdough unless you want to help the flight crew scrape it off the floor, allow child to shred a box of wet wipes in order to buy 5 more minutes.....you will need those upon landing to immediately change diaper.
overall, great trip....long flight!! here are some pics of us at octoberfest, atlanta aquarium and the leftovers from my bag-of-tricks we used the plane.