GMap_Direx (GMap Direction Extras) is a module that allows the request of directions from Google's GMap service and stores all details about the direction in the Drupal database for later view. All those directions are user specific and no route can be saved more than once. This module was driven by specific customer request and has been developed in a generic form to be able to submit this to the open community. However, in the next few weeks it's like to get changed fundamentally, so you should expect some important changes. Therefore use with care in production sites for the time being. After installation and configuration, just visit your account profile at http://www.example.com/user/your_name and you'll fina a new tab called "My Directions" or go there directly: http://www.example.com/user/your_user_id/gmap_direx. Here you find two new tabs to either display all saved locations or add a new one. Everything else should be self-explaining.
Drupal 6 and the GMap module (including a free Google Map API key)
Install as usual, see http://drupal.org/node/70151 for further information.
Configure Gmap_Direx in Administer >> Site configuration >> GMap Direction Extras Enable GMap Direction Extras permissions in Administer >> User management >> Permissions