I spent the morning tagging posts. I have gone back 80 posts. Finishing 2 of which that were dangling. I can't go back further because LJ seems to no longer like the idea of:
http://www.livejournal.com/users/<myjournal>/?skip=80
I will do it from the month view as time permits.
Since I have no sense of self organization, I currently have 67 different tags. I tend to use 3-4 tags on average per post, I know one had 7 tags.
My current top ten tags are behind the cut
15 - meme
10 - travel
08 - film
08 - livejournal
08 - philosophy
07 - aries
07 - geek
07 - oto
06 - health
06 - nostalgia