One of the features of SharePoint is its WebDAV available interface. An advantage to this interface is the fact that you can connect to WebDAV with mapped drives. I've found it a big win in an organization when users are now switched from storing files to their S:\ drive and now forced to use SharePoint.

The idea is simple. When a user logs in, you fire off a script to try and map a drive to the user's My Site Shared Documents doclib (which becomes the S:\--for shared--drive) and the My Site Private Documents doclib (which is now the P:\--for private--drive). Users can create folders and documents in these folders without issue. The best thing is, all the content is thoroughly indexed with MOSS search (unlike the old S:\ drive) and the users can ease their way into using the My Site and SharePoint.