As I was making cards this past Christmas season, I was using a rubber stamp too, but it wasn't personalized, and I was trying to think of an easier way that I could put my signature on the back of the card and still have it look good. I'm not that great a stamper (if you make a mistake, you're stuck, or you're taking more time to fix it)! So this is what I came up with.
For me, this is a quicker process and I don't really have to worry if the stamped image will come out evenly, etc. I think it's a perfect size for putting on my A2 cards. What do you think?