Other than not checking things off my travel checklist as I pack them (I use the android app Out of Milk for that), you pretty much described my perpetual traveling experience. I don't travel with presentation go bags, but I do have the various international ziplock bags that get swapped out depending on the country I'm traveling to (power adapters, local subway/train card, local cash, printed contact info of a person I know in the country, etc). I also add my kindle, because my time in the airport/on the plane is either spent listening to my ipod, reading a book, or watching movies.