1password for me. You can choose whatever you want though. Write them on a piece of paper you keep in your pocket if that works for you. Whatever you do, don't reuse them between services. It's just a matter of time before someone loses them and all your accounts are wide open.
In an ideal world we wouldn't use passwords anymore. But right now we have no choice so we have to do whatever we can to mitigate our eventual compromised accounts.
