[twitter-dev] What to do with the access token after you've received it

[shawninreach]

Im a little confused on why some people are saying you want to store
the access token after you get it. Dont you just want to keep it in
the session until the session expires or the user clears cookies? I
understand how to use the access token, im just confused on after the
session is expired your going to need to make the user click "I Allow"
later again and theres nothing that can be done about that and you
request new tokens so why store them in the database at all. Basically
im just trying to understand this process a bit more so I can safely
store only what I absolutely need to. Thanks guys for the help!