One word: widget It's a comilation of about 20 or more small Tk scripts that demonstrate a large variety of what one can do with Tk. It puts itself into your path, so you should be able to run it from any command prompt.

The other cool thing is that there's a button under every example that shows the full source code used to make the example. However, one should be warned that the top handful of lines are specific to the fact that it's an example in the widget program, and those lines should not be copied verbatim into anything you write.

perl -pe '"I lo*`+$^X$\"$]!$/"=~m%(.*)%s;$_=$1;y^`+*^e v^#$&V"+@( NO CARRIER'