I needed to organize a large amount of folders I have in a bookcase and this told me that if I labeled them I would be able to go directly to the one I needed immediately. They work! And since they slip into the sleeve, you don't have to worry about adhesive eventually wearing off.
Trying to do Spring Cleaning in my office, it really helps if I don't have to pick up the same folder over and over again because it's not labeled and so I don't know what's in it. These do the trick, especially with the notebooks. They slip right in!
I had a large number of notebooks from various conferences I had been to and they were all on a bookshelf with no way to tell which was which so I could just pull out the one that I needed. Now that I have these Binder Labels, I can go straight to the one that's important right now and not waste my time searching for it.