Has any thought been given to recording setlist information?
One of the sites that I visit for a different band, antsmarching.org, has a fantastic setlist archive. If you visit
http://antsmarching.org/tour/ you can take a look at what they have done.
You can then search by song, venue, date, guest, etc. and find out what songs were played and when. Plus, you can actually select what shows you have been to and then you have a record of what songs you have heard live.
- Matt