I recently ordered a folding machine for my invoices. It is a Techko LF283B. I bought if off ebay, here is the item link. http://cgi.ebay.com/Techko-LF283B-L...ryZ46692QQssPageNameZWDVWQQrdZ1QQcmdZViewItem The machine can do 5 or 6 different fold styles and does about a page a second. Here is the youtube video link that I made. http://www.youtube.com/watch?v=z41R1_BahT4 So far so good. It seems to be a good investment for just over $200 with shipping.