I'm trying to invision using an RSVP POSTCARD instead of a little card. I like the idea, as it saves on postage, saves the cost of the smaller envelope, it's unique, and easier when we get them (no opening a million cards--there it is, on the postcard).
Is the Postcard slightly smaller than the invite, then? I know postcards have to be a specific size, though, for postal regs (I'm a freelance designer, so I can figure that out).
Any examples?