For when stick-on tabs won't cut it, use this durable plastic bookmark that's compatible with Avery 5412 labels (5/16" x 1/2"). I can see these being really useful in a lab, or a medical or legal practice, for temporarily flagging files (or boxes of samples) that get handed off to multiple people or departments. Personally, I plan to use these for managing the workflow of handmade jewelry.
Product is showing first to try because I flipped the model for rendering purposes. Photo features white strong & flexible.
Available in a wide range of plastic colors, for color-coding purposes.