Yeah I can't recall when I started using it either. At least 4 years, but probably more.
I've been talking to my boss about it for use in our office for years, but she says she doesn't trust the technology - i.e. passwords stored on the computer in general.
Recently she while she won't use it, I'm welcome to get others to try it. Of course we all know that without management buy in, software like this rarely takes off due to originating start up cost (time to learn it - sadly no password manager is truly easy to use, especially when websites don't conform).
That said I will be trying to make a better push.