I haven't printed anything in months. We moved offices and I haven't set up the printer again. Really gets the balance between simplicity and control right.
Hellosign is easy and cheap. They aren't the most feature-rich solution, and it can be a bit convoluted to set something up. Also, it's a little difficult to tell the status of your documents-- I will probably need to move to another system when we get a few dozen documents in play, since there doesn't appear to be an organizing mechanism in Hellosign.