I do sales and when I meet with a designer or a procurement manager I like to provide them with a binder that includes catalogs from the manufacturers we represent. There is plenty of room for the catalogs in these binders and I can personalize the binders with our company logo on the front and on the spine. My customers love that they have an organized binder that allows them to look elsewhere besides a computer screen. Not everyone enjoys computer searches. Some customers like something they can hold in their hands.
Binders binders who ever has enough binders! These are sturdy and work well for a variety of projects. They aren't just for school kids you know! I have color coded several projects that I am working on and these larger binders come in a variety of colors which makes it simple for me to pick the right one at a glance when I'm in the middle of something and need to find just the right reference without pulling everything off the shelf. They store upright as well as on their side in a file system and hold up to a lot of abuse (ahem I mean handling). Thanks for carrying the larger sizes that often can be hard to find.