I told y'all about this cool Scrivener program a while back.
I'm still loving it.
See those little pushpins holding the index cards onto the corkboard? They are color-coded. They can represent anything you want them to, but in my case, they represent the setting.
So I can see at a glance where my chapters are taking place.
I can also bring up all the chapters containing a specific character or any other keyword I want to use.
I can see an instant outline of the whole manuscript.
I can rearrange those index cards (i.e., chapters) just by dragging them around.
I can even concentrate on what I'm supposed to be doing and write.