I take a Wodehousian approach to an AMV timeline. He would plaster the walls of his study with pages of manuscript, rewriting and adjusting them and pinning them further up the wall as he grew more satisfied with their content.
He probably went through a lot of tacks. And Polyfilla.
On my timeline, the audio track is my base, while anime clips start at the top and filter down the rows of video tracks as they are modified, eventually reaching the bottom track once I'm fully satisfied with a segment and lock it as finished:
The end result for many hours' effort? A plain and unspectacular single-track timeline which seems awfully simplistic in comparison...