I always have Purell, Nice'n Clean wipes, Kleenex, and a Swiss Army knife in my purse at home and away. The SAK will definately need to be packed in your checked luggage now, but still, you can add it to your fanny pack once you arrive. The one additional item that I always have in my purse that I have not seen mentioned on this thread yet is Shout Wipes. I started carrying them when we adopted our son, but, ironically, I end up handing most of them out to my coworkers when they spill their lunch on their uniforms! Another thing I had along last time was the small pouches of fruit snacks. We didn't get stuck in many lines, but the couple of times we did, it really seemed to appease my (at the time) four year old.