As I could see from my completely full flight from LAX to CAN to PEK yesterday, somebody's got to sit in that middle seat. How have you been able to avoid it in most of your 300+ flights?

I've got a few more intra-China flights left, and then the journey back to the U.S., and no seat assignments on anything.

Edit: I'm assuming that you might have an advantage having flown so often that you are of elite status.