I had read on some blog that it was nice and useful to have some “business cards” on you while traveling. I’m quoting business card because they do not have to be about business. It’s easy this way to leave your coordinates.
I found the idea really nice and also wanted to try moo.com for some time. I heard a lot of positive reviews on Moo and I’m in fact really satisfied. The cards arrived quickly in a nice little box and are of excellent quality. Far ahead of what vistaprint offers (I tried them a few years back).
I also ordered some stickers for fun ;)