No precautions
Until I read the last few posts, I was starting to think I was the only one who does nothing.
Most of my travel is in Asia and I usually stay and pretty good hotels. I tend to leave the laptop connected on the desk. Never had a problem so far.
I'm so used to doing this, I do the same when traveling in the US at Hampton Inn, Courtyards, etc.
To all of you who are more security conscious, have you ever had problems?