A: A fairly good amount. I do 'recycle' characters, and that helps. I don't like creating a character for a roleplay, and then leaving them if that roleplay ends. My characters are like family, even if they are pains-in-the-ass sometimes. Someone I've put effort into creating will not be left behind, I guess you could say. Besides, the more developed a character is, the more interesting and enjoyable they are to write about, and I find my partners usually agree with that.
When I create a character from scratch, I'm often inspired by images, songs, events from my own life, or other people I know. My characters are usually amalgams of my own personality, friends and family, and interesting traits or experiences I've read, seen, or heard about. They grow on me, and as I mentioned, I tend to be loyal to them.
Q: Do you world build, and if so, how do you go about it?