It is a while since I sent my stuff through the postal system, so printed off a couple the other night, just to satisfy myself they'd go through.
I cut a manila folder to A4 size, because as usual, it was night when I wanted to make stuff and I couldn't go out and get any card. I like the natural tones of the card too. As you can see on the backs I just ruled a line about two-thirds of the way across for the address.
Pretty sad when a girl sends herself mail! :)
Things turned out ok, (though I don't know why they wouldn't), so I'll have these on here for you soon.