Terrible idea. Dreadfully awful idea. Should my bank or PayPal info access have the same difficulty as my Facebook account? In any case, multiple passwords is a MUST on the Internet, else I could find your one password and destroy everything you have.
HolyExLxF Important stuff should be different than the "It doesnt matter" stuff but each category should keep a mutual password for each category. Thats how I remember my passwords.