WP Super Cache
A long time ago, I tried using WP super cache on this site.
It mostly worked, but it ran into some weird problems on some rewrite rules. Fortunately, I never write anything interesting enough to get Dugg or Fireballed. This site is for me to read, and for the occasional person Googling for the answer to some obscure question that I may have answered.
Anyhoo, I gave WP Super Cache another shot, because I'm supposedly some kind of real techno-nerd and should be able to make that shit work. So, it's working apparently, and isn't borking my rewrite rules. Yay, Super Cache, I might have to make a donation.