All things etiquette say printing the address labels for wedding invitations is a no-no. I have always agreed with this. However, my invitations came with labels. The envelopes are brown and the label is a cream color. I COULD write on the labels however, the labels are really small and on the box it has it printed and the directions also say to print. I am not sure what to do, I would have to write really small in order to get all the information there. The link shows the pictures of the set to give you an idea of what I am talking about.
http://www.gartnerstudios.com/skuDetail.cfm?sku=76324