Hi thanks for the info. I had forgotten about the post office beyond the security site. That would be perfect, but I am a little concerned about the line in security. I am traveling on Nov. 21, the night before Thanksgiving, and connecting in DEN to another flight to LAX. Not sure I'd have time, but the box in terminal B would be good too. I am connecting in LAX to an international overseas flight and wont' have time to get to a post office before departing the US. Thanks for the help.