My Bank is a Security Vulnerability
matthodges.com
matthodges.com
The OP (ostensibly) using the same password at their bank and at LinkedIn however is a security vulnerability.
http://michaelkimsal.com/blog/mind-blowing-security-practice...
IMG -> http://michaelkimsal.com/blog/wp-content/uploads/2011/06/Scr...
Also, your bank is not the most important password you have. That would be your email, which is used to reset all other passwords.
I agree with your statement that sharing passwords between sites is a bad idea. And I don't do it. But I would assert that longer passwords of wider character sets will be harder to crack if a database is compromised--as was the case with LinkedIn. If my password is 8 characters, alphanumeric, it doesn't matter if it's original to that site. If there's a compromise, I'm not going to be in a good place.
Also, my bank doesn't allow for password resets via email. But I would agree that my email account is at the top as well. Fortunately, Google is much smarter about their password rules.