Many of us that have played the game every day over the years have developed some habits of sort. One of the habits that I've found myself doing night after night is logging off in the same spot. For me, this spot is at the staff vendor in the Aldor section of Shattrath. I find myself logging off here almost every night since I hearth back to Shat when I'm done raiding, and then go and repair immediately (less I get yelled at for not being fully repaired).
I can imagine that there are some better spots than others to log off at. In particular the PvP servers I'm sure pose certain pragmatic limitations on where you can disembark from the game. In the PvE world, I could (if I wanted to) log off anywhere in the wild. Save for the wandering aggressive mob, I would be just fine. However, I don't think this would be too good in a PvP environment.