It would be nice if there were a preference that let you show the patron their usage stats in the OPAC - just making the stats tab from the staff client visible in the OPAC basically.
A problem I see here is that the statistics display appears to be buggy in some cases. So before exposing this to the end user, we should take a deeper look at the logic there. bug 19005 asks for an option to hide this tab, we might want to add 2 prefs for OPAC and staff separately.