These folders are just perfect for what I need in my business. I keep all of my customer's information across the top such as name address phone number(s) building permit numbers etc. This way I can bring it to the job site and have everything available at a glance. Of course all receipts for business expenses of that job as well as the contract and flat plans are kept inside.
I use these folders as report covers printing my business information both inside and out and on the full tab on an oversized printer that prints 13x18 stock. It works great looks professional and makes it easy for my clients to file their important papers.