Okay. My invites are done, but I want to be prepared as to what to expect when it comes time to put addresses on them. I would like to print a light gray color ink on the envelopes of our guests' addresses. I will go over that with a black calligraphy pen. Does anyone know of a national chain that does this... or even what sort of vendor would do this? I just don't know where to start looking. When I printed my invites, the guy at fed ex office told me that they do not print on envelopes there. I just want to be prepared for when it comes time to mail them out, to know what strategy I will be using.