Yes, I used vistaprint business cards for the luggage tags. I had to cut off a little sliver off the edge to make them fit into my plastic tag holders (which I got at walmart btw 10 for 1.99)
I also struggled with what to put on the back, I decided just to make them the same on both sides, rather than have a decoration or monogram on one side. You could order another box of cards in a different design and then glue them together, but I just didnt want to waste so many cards, and plus I thought that way the address is on both sides and visible from whichever direction!
Also I used white 3mm ribbon, which I got in a discount bin a while back at fabricland.
In the end I'm happy with them, and the whole project cost about $13.00 for 40 - I may make more later depending on numbers, but I will need to buy some more plastic holders