Yeah, that's the question of the day, how do you work? When you work on your layout, how do you do it? Do you do all of one thing first, like the trackwork, then ballasting, then the scenery and so forth), or do you do a section at a time, (that is, finish up one area before you go to another one)? Or do you do combinations of both? The first way you have all of one thing finished on your layout before you proceed to the next level. The second way, you have one section completly finished, then you work on another section.