One thing I don't do is zone through thulehouse1. Too many likely to see you. I zone into it, then turn and face the door, so it looks like I'm zoning out.
But man did I have a 'doh!' moment the other day. took the GH to Dragonscale and was supposed to type /zone Crystallos. Did it on two toons and on the other two? /zone Somnium. Into the GL, then POK, then Feerrott, then Feerrott2, then Thule Yard... you get the picture. Man did I feel stupid.