I have another fantastic tip from author Yolanda Ridge. Her two middle grade novels include Trouble in the Trees and its sequel Road Block. You can read her first tip, #136, here, and find her at her website here. Enjoy!
If you spend a lot of time surfing the net (and let's face it - we all do), Pinterest is a great way to organize all the writing ideas you come across by accident or on purpose. With the "pin it" button (which you can download after signing up for your free account) it takes only a second to capture an image and post it on a board of your own creation. I think of these boards as virtual file folders. For my work in progress, I have a board for each of my main characters. On each board, I've pinned pictures of that character's favourite foods, outfits, things they like to do, places they dream of going, careers, hobbies, etc. Each picture has a link back to the original web page and a place to write notes. You could have a general board labelled "writing inspiration", a board for each book, a board just for facial expressions... there's no limit! Each board can be private or public, so if you don't mind sharing your ideas and inspirations you might actually get some extra publicity out of it. Just be sure to pin a picture of your published book cover from your favourite online supplier so followers can easily buy the book!