One time hook per visit?

[JamesAB]

Is there a hook that is called once when a user first logs in or when they return to the forum and they remain logged in because they have the "Remember Me" box ticked?

I'm looking at the login hooks, but I'm not sure what happens if the user has ticked the "Remember Me" box.

Would any of the login hooks still get called if they aren't typing in their username/password?

Basically all I need is a hook that is only called once per visit.

Thanks for your help,
James