There are some standard things in Tk that I'm interested to know how others do them.
1. Maximising your MainWindow so that it fills the screen.
2. Minimising your MainWindow.
3. Finding out your screen size (not your widget window size).
4. A cancel button that kills the MainWindow and any currently running processes gracefully.
If you have any other great tid-bits for what you'd consider good MainWindow Management that you've found useful and want to share, please do so. :-)