How do you organize your poetry collection?

I have a bunch of poems and I need to organize them, probably by content. What labels would you use for organization?
Answers

Anonymous

crap , crappier , crappiest

choko_canyon

Personally, I organize them by date, and then by subject.

Sir Caustic

Those rectangular white ones you get from stationers and supermarkets. You can get a roll of a hundred for pennies! Global economics, man.