The Default Drupal Node (you can think of it as a page or content container) Add and Edit forms are quite notorious for the amount of clicking required.
The following Wireframe would remove a lot of that difficulty:
http://www.scribd.com/doc/1141057/Drupal5Nodesx1
With Jquery, the form tabs can not only be resized according to number of tabs horizontally but they on hover, the tabs can be made to automatically reveal the contents they contain. While techinically challenging for small companies to produce given their budgets , the proficency of Drupal developers at drupal.org could make such things possible in Drupal 6 or 7.
The video below shows how Forms in Drupal 5 are currently handled
A larger Video can be seen here: http://blip.tv/file/611514/
The PDF on
http://www.scribd.com/doc/1141057/Drupal5Nodesx1
offers a much more efficent way to handle add and edit fields in Drupal 5, especially for site managers and admins.