I'm currently contemplating the idea of running an appropriately configured sshd under my own uid as my primary interactive-session process, and sshing in to that from my desktop box. That way all my processes are still children of the process they ought to be, which means in particular that if CPU-time accounting is going on then it will still give the right answers, but I also get to use sensible X forwarding and so forth.

The sshd idea sounds neat but also sounds like it makes it even easier to accidentally leave interactive sessions running over the weekend ;-)