What do you name your characters, as you go through the game? Do you keep their original names, or name them after friends and yourself, or famous people, or what? Do you use different names every time you play through, or keep the same ones?

I've done a lot of things, from keeping their original names, to naming them after friends, family, or famous people. I've even played through a couple times with everybody having the same name, or all the guys having the same name and the three ladies having the same name. Although, that does get confusing every once in a while.