Session Variables How Many?

I'm wanting to store about 6 fields one of which could have about 1600
characters in a session variables for submitting data to the database.
I'm trying to elimate partial records being inserted into the database
when a user quits in the middle of an entry. Is there a limit to the
size of what you can put in sessions and number of session you want to
limit on a server. Didn't know if you had a high volume site that if
you stored new records in sessions, how that would affect performance.
I thought about using cookies but not everyone has them enabled, I
guess I could check first. Any suggestions on this? Thanks
Received on Mon May 1 02:45:06 2006