* Examples:
  - find proper connection between application-specific and generic widgets
  - `add' command for contact manager

* Keys:
  - ENTER returns (KeyChar '\r'), but what is KeyEnter good for?  (**)
  - TAB returns (KeyChar '\t')

* Widgets:
  - export list for module (**)
  - autowrap for text widget (low priority)
  - border widget (**)
  - selection widget