When I'm at HK, I stay for about a week or so and get a regular Octopus pass. This is VERY convienent, you can use it almost anywhere. This is great for those late night runs to 7-11. Thanks for all the info, I guess going to the Train Station will be A LOT easier than drving 45 minutes to the airport. Is it me or there is nothing to see after the bridges on the highway to the airport?