Hmm, I used to use last.fm, better change my password. Hmm, 1Password shows I was using a generated unique password, so that's good, though it wasn't as long and complicated as the ones I use now. And this password was generated June 7, 2012. Wait, when was the hack again? March 22, 2012.

Ah, looks like I was covered. But hey, now it's an even longer password with even higher entropy, so that's not a bad thing.