Keep a writing journal for items (articles, chapters, books) that you read in reference to your writing project. Write down quotes that stand out for you and your thoughts about the quotes and the writing in general. Refer back to the journal often as you are working on your writing project. You will not use everything in the journal, but it will be helpful to remind you about thoughts you were thinking during the process.
Also, keep a writing journal for random thoughts and ideas that come to you. Review it a few times a year to see if there are themes that are emerging. If so, could it be your next project?
Reference: Marilyn Simon (1998)”The Dissertation and Research Cookbook” Dubuque, Iowa: Kendall Hunt Publishing Co.
For a list of Sheila’s books, check out http://www.amazon.com/-/e/B003HWM3PI