My advice, for what little it is worth, is just to remember good unique passwords for mission critical sites, e.g. bank, eBay, PayPal, Amazon, any sites you actually own etc and then use a password manager for the stuff that is less important/can't impact you financially. That's certainly the way I work, I use good passwords I can remember for the sites mentioned and Apple's Keychain for the rest, which means all the stuff that doesn't really matter and I can't remember is available cloud-synced across my laptop, iPad and iPhone. If it is ever hacked the hacker may be able to post as me on Steve Hoffman's site, Wigwam or whatever, but I doubt that is much attraction or of huge commercial value! I never save any card details anywhere aside from sites where I remember a good alphanumerical password myself, i.e. passwords for that data is not saved anywhere.
