Unfortunately, (in this case anyway) I have a good memory and these things bug me. When I am writing I want to make sure I get my details right. Allow me to share my work method, and please feel free to share any suggestions.
I use the computer, but on occasion I jot down things in a notebook I keep on hand, and in a pinch I have used my e-reader and phone.
In my story file I have a character folder, in which I keep track of each character’s physical description, quirks and habits, as well a brief description of attitude and personality. In some cases I develop a family tree if I have to.
I also have research files for geographic location, and other elements pertaining to the story, like legends, language and so forth.
There are times when I end up with pages of interesting information, even though I only use a line or two in my work. I don’t mind either, because I like to learn and I want to make sure my facts have been verified.
In Amethyst Eyes I kept a folder for the new technology, words, food and items that had to be created for the story. It only took a moment to check back on the information and make sure my writing remained accurate.
If there is to be a second book in the story, then I have taken a chunk out of the preparation and I can fall back on my notes to make sure I remain faithful to what has already been written.
How do you do it?