I myself do this while I revise:
It's an insane compilation of note cards, color-coded outlines, and sticky notes. A huge mess, but it's worked so far.
But what about using software for all this? After a brief but dizzying internet search, I found countless—and I do mean countless—software applications for novel and screenwriting. Here are a few links before I gave up because there were just too many.
Scrivener 2.0 for Mac
Write it Now
Many of these applications have free trials, and they boast a bunch of features such as:
- ability to edit multiple documents
- easy ways to take notes, like on a corkboard
- files to put random snippets, picts, ideas
- outlining program
- electronic sticky notes
- writing references (grammar, thesaurus, dictionary, etc)
- novel templates
- text analysis
- read back and dictation
Have you ever thought of using a software program to write?