These are a little pricey. However after using them I find they are worth the cost. I first used them this year during tax season. I keep all of me documentation in individual hanging folders in my file cabinet - that takes up a lot of space. These hanging file folders expand to 3.5". Now instead of having a separate file folder for each category I place those category of documents in "clasp envelopes" which I label and place in this one expansion file folder. I have everything I need in one place - one hanging file folder. I carry that one file folder to the Tax Preparer and when I am done I place that same file folder in my cabinet. I have every document associated with that tax year in one place. I apply the same principle to other documents I want to retain for several years - like mortgage statements - banking statements - ect. I have found that one of these expanding folders will hold the contents of 5 regular folders - and - takes up less space. That's a good value.
I have some other Staples hanging folders that are far superior to the ones I got in the store. I thought they were the ones I was buying. I was disappointed. I thought these were the poly folders and they were not. The poly folders I had previously bought were about the same price. I was disappointed with my purchase but I went ahead and used the folders any way.