As you know, Shapeways sends out emails informing you of when you have made a sale. If that person is registered with Shapeways (and not just a Guest) you have the option of sending a message to that customer to thank them for the order.... So my question is, do you actually do that? As a customer I wonder how they feel in receiving a message from the Designer? Okay, I will make a poll out of this, but feel free to elaborate here, especially if you answer "sometimes" (curious why not all the time). And, personally, my response would have been #3.