Most people know that you shouldn't use the same password everywhere. Furthermore, it shouldn't be something easy as your grandmother's name or a word in the dictionary - a secure password is long and consist of letters, numbers and special characters.

OK, that's fine. But how do you keep track of all your passwords?

I tried KWallet once but gave it up, because I couldn't figure out how to use it. It stores my password, no problem there. But once a wallet is opened, all passwords can be seen in clear text! I really don't like to see my passwords printed out like that.
(Yeah, it's my fault for not reading the documentation, no blame on KWallet here).

[Firefox rant - skip if you aren't interested]
Now, I've been using Firefox' password manager for a long time. It's easy to use and I've never had any problems with it - until today, when I discovered that it has the same "feature" as KWallet. If you're a Firefox user, try this:
Edit -> Preferences -> Security -> Show Passwords... -> Show Passwords -> "Yes".

Surprised? I can tell you that I was. The right thing to do is to set a master password.
[/rant]

Anyway, this thread isn't about how good/bad KWallet and Firefox' password manager are.
I'm interested in hearing how other KDE users handle their passwords. Do you just remember them all, write them down somewhere or let an application store them for you? Which software do you use, and how do you use it?

I use the KWallet for my passwords. I think it's good enough, since it asks for a password before it lets me use any of its passwords, and it closes by itself after a certain amount of time. The master password I use is really weak because the point for me is that I don't want to type all the passwords in. However, I don't see it as a problem since I always lock my computer whenever I am away.

As for the passwords themselves, if the site is something I don't really need to worry about, I use pretty much the same password. For other important sites, I create unique sequences of letters and numbers which I can (usually) reproduce after a few tries, even if I didn't type in the password in a long time. For obvious reasons, I can't tell how I do that.

I store all my passwords in a file in a TrueCrypt container. I let unimportant passwords be stored in Firefox, and use Kwallet for a couple of network passwords. The Truecrypted file holds quite a number of important passwords, so I just hope no guy with a wrench comes knocking on my door anytime soon.....

I don't store any passwords in my browser and use KWallet so that KMail can login to my ISP for e-mail.

For everything else I use KeePass which is an excellent password manager. It's open source, secure and cross-platform (the Linux version is called KeePassX) and can also be run from a USB stick so you can take your password database with you.

Links:
KeePass - http://keepass.info/
KeePassX - http://www.keepassx.org/