Alright, so I'm sitting here at work (and working wonderfully hard, I assure you), and since I can't get my mitts on Hammer Editor, I thought I'd ask something that I've been wondering about. What process do you use to take a map from thought bubble to completion? Where do you start, how do you plan? What have you found works, and what doesn't? Do you sketch out whole layouts, or just key areas and wing the rest? How do you approach putting together the basic map? What keeps you on task and keeps the map coming together? Any advice for newer mappers trying to work on/through their first real maps?