My wife uses these folders to separate and store recipe's. I've tried to get her to go electronic and scan them into our Synology server, but she likes the paper recipe to save her mark-ups. The folders work great for my wife, the fantastic cook.
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.
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
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.