I am just curious if the authors or anyone else has an opinion on what's the best approach to handle a situation where you have a single web user who wants to multitask between several different web activities at once.

e.g.User could be in the middle of a patient registration screen but then get a phone call that needs an appointment creating.

I've read that in classic asp you can either simulate multiple sessions by putting the session variables in an array with some kind of unique identifier to indicate which 'pseudo session' all the variables are for. Another approach was to hold the 'pseudo session' data in cookies...

What about the new Personalization Provider? Is there any new standard approach now to dealing with multiple pseudo sessions from a single user in asp.net 2 with vs 2005?

Thanks to all for any feed back you can provide