The folders are functional but not very sturdy. They aren't built for a lot of wear and tear but will serve the purpose for home filing organization use.
card stock (65 lb) was on sale -- use car stock for printing personalized greeting cards -- disappointing variety of envelopes for mailing my greeting cards, but I found satisficers -- file folders & pendaflex hanging files on sale
I rely on these to keep receipts and invoices for each task/project together and in order. I just finished my taxes and I still use on them. They help me collect and sort my important paperwork throughout the course of a year. When tax time rolls around, I know exactly where everything that is only a hard copy is.