For some popular websites, such as Gmail, I have a few tens of login informations that I'll _likely_ not need in the near future, but I should hold on to. For instance, old client logins, or sockpuppet accounts.
It would be nice if Lastpass were to support "archiving" old login information _per login_. We can currently create a group Archive to put in different sites, i.e. Gmail, but that does not help when I intend to log into my personal Gmail account and have to wade through 42 Gmail logins. With the Archive feature I could archive all the old accounts such that when I go to log into Gmail only my own account and the wife's account show up, but if a client from 2006 calls and needs me to log into his Gmail account I could still access that information.
Currently, I am considering putting the old information into an encrypted tarball for when it is necessary, however I find that to be an horrible solution for quite a few reasons.