How about using the password manager to store security question answers too? It's mildly inconvenient because each site seems to require at least three, but then you wouldn't risk forgetting them and you could use random generated strings instead of having to make them up.
> How about using the password manager to store security question answers too?
That was my point: I use my password manager to store those security questions and answers but if someone got ahold of my password manager account I would be screwed because many sites require the answers to those questions to reset a password.