If you are using your user name as your password, 43 percent of all password-guessing attempts simply re-entered the user name.
The top 10 most common passwords:
1. Your user name
2. Your user name followed by 123
3. 123456
4. password
5. 1234
6. 12345
7. passwd
8. 123
9. test
10. 1
http://daol.aol.com/articles/10-passwords-you-should-never-use
My seriousness to password selection is that, my wordpress.com password is 30 character long. 🙂
Surprising is how you manage to remember!