I've been using tcl/tk for many years & think it is very well suited to many tasks. Over time I will try & fill more of this page with pearls of wisdom. I've contributed here at the wiki in small bits on some pages and to fun little apps, Windows Registry Browser and Tclers Chat Tk GUI
Some silly fun can be had at Tcl/Tk Games of which I wrote TkMaze (origins from maze generator based on RS's Graph Theory in Tcl) and also TkBomb
I'm a software engineer working for Raytheon in Garland,TX. but I am currently on assignment working with the HPTC group of Compaq in Galway, Ireland. This has been great because it is my first major project which is primarily Tcl/Tk (and expect) based. Prior to this I used it myself for developer tools and such, and occasionally some small parts of systems we were building.
If you want to see some nice Pictures of Ireland you can check them out as http://homepage.eircom.net/~hartweg