We own a costume shop, and we use these holders to display photos of the costumes on the outside of the hangers so customers can see the full view. The clear plastic is a little opaque, not crystal clear, but it does the job. It protects the photo and keeps it from getting bent or dirty. We use Avery Secur-A-Tach Fasteners (from Staples.com: http://www.staples.com/Avery-Secur-A-Tach-Fasteners-5-inch-Long/product_AVE18800) to hook the photo holders on the hangers. This system works very well, and they have been durable enough to last a couple of years.
I used these namde badges for a company event I was hosting. They were extremely easy to use. I had all my names in an excel list which i then merged into the template and voila! all my names appeared without me spending time re-typing them. I would definitely use this product again. My only complaint is that the quality of the buckles isn't the greatest and a few fell apart after use.
We use our badges for visitors, which means they get a lot f wear and tear. We ordered 100 last year and did not have to order replacements until this year. I believe the replacements are more because people forget to give back our badges when they leave. We very rarely have to throw away a badge because it is torn or the clip is broken off.