Sessions: Actually how much data is 4KB?

[eluser]Elliot Haughin[/eluser]
To answer your first question...

4KB is quite a good size actually.
It is estimated that a kilobyte can accommodate about 1/2 of a typewritten page. Therefore, one full page requires about 2 kilobytes.
And 4KB could store about 2 pages of text.

Hope this gives you an idea of 'how much' stuff you can get into 4KB