Where'd you learn C++?

I was wondering what you guys look at, because I see all these lines of codes, and I'm thinking: "Wow, these guys must know their shit, when it comes to C++." I've been looking at the "Teach Yourself C++ in 21 Days" book, and it's going pretty good. But I want to see what you guys have to say, when it comes to where you've learned.

Oh, P.S.
- No, I don't want to learn D.
- No, I don't want to hear about some other language, just C++.

I learned C++ at my university. They used to give all kinds of programming assignments that were quite educational. Being lazy I would have never voluntarily done all that painful work of actually coding.