Add Attachments to emails

I would like to see the ability to attach files to any email correspondence that I am sending to a customer/vendor. For instance, I may need to send a customer artwork files along with an invoice or any correspondence. This would also be a great add on for when I am sending a vendor a purchase order. Mainly for our promo product distributors who will need artwork and templates attached. I currently have to create a po for a vendor, save a pdf and send it in outlook with the needed attachments. This would be much easier and easier to track if it were possible in deco.