[sp0rk]

I'm surprised LastPass hasn't been mentioned yet. I've had nothing but good experiences with the company and the product itself. It is primarily a browser plugin for storing web passwords and sensitive information but you can also use the secure notes feature to store passwords for other applications. There are several multi-factor authentication options available as well.

[ja27]

I use LastPass with the Google 2-factor authentication app. I also keep some secure notes in it.