What I have found to be really useful is to spend a few days making nothing but 4 bar loops.

I get maybe five or six done, then I'll spend the next little bit doing quick sequencing and edits. Then later after I have several sequenced tracks i go back and do the modulations/volume changes/sweeps/etc.

Some will think this method will lose the original feel to the track, but i kinda like the way the track progresses according to diferent moods and different parts of the week.

The real trouble I have is knowing when to stop working a track...so I guess I'm the opposite of you folk, I got finished tracks...or are they finished?