I like worldbuilding. A lot. Too much. I feel like I have to know every detail of every facet of every character, every restaurant in the city where they live, every street name, etc. It's a real problem, because I feel like I have to know all of this before I even start the actual writing, and it takes ages. So here's my question: How much world/character building do you do, personally? Do you have a system? How much do you think is too much?