One of the most consistent aspects of Foreign Service life is change.
You are always either moving, just arriving, bidding, or preparing to leave. There used to be a blog called "Six Months of Settled," a moniker that aptly describes our lives. When they say that the Foreign Service isn't for everyone, this is part of what I mean. If you can't handle lots of change, lots of unsettled, this may not be the career for you.
Need an example? As some of my FS friends of facebook pointed out today, since it is now 2012, they can refer to next year being in post X. I can even think in terms of leaving Tallinn the year after next. Not a thought I want to dwell on.
Because I really like it here.
And I am settling in to what is my new (old) normal: life living with my wife again.
We are riding into work together, having lunch together, spending evenings together.
It is exactly how I prefer my life to be.
Of course, I also prefer my life to be settled, though given my proclivity for getting bored pretty easily, this is probably a pretty good compromise for me in terms of careers.