gnome-terminal has a great feature where opening a new tab or window starts the new shell with cwd = the cwd of the previously-focussed window.
I usually run GNU screen in one of my gnome-terminal tabs. Partly for the scrollback, partly for the compact and enumarated display of 5 to 10 windows, partly for the quick keystrokes to switch to a specific or the previous tab.
But I've been starting to wish I could cd in one window to the CWD of another window. The question is, how?
(BTW, is a stackexchange Q&self-A an appropriate way to share a neat alias, shell function, or hack like this that I came up with? I don't have a block, and I don't think twitter or facebook would be good options.)