I have a suggestion for users sharing a computer. Using Netscape’s Profile Manager, create a profile for each user. Then when you go into Netscape Navigator/Communicator, you select your profile for the menu of users.
Each user profile has its own cookies, bookmarks, preferences, visited links, etc.
You must exit Netscape to switch profiles, but each user can stay logged into Straight Dope.
Cajun Man and I share a computer, and we use separate profiles. It works great!