I must admit I use a mishmash of techniques but LastPass is very good at achieving most of what you suggest, it can even be used with YubiKeys to give you a physical "Key" to your logins. I also universally use disposable email addresses to sign up (via Spamgourmet.com). Not only does this not expose my personal email address to spam/abuse but means I can find out which unscrupulous bar steward was prepared to sell me out!