I got my path from here, http://acnewleafdesigns.tumblr.com/tagged/path, I am currently using the paths in the top post, 'The Treasure Town paths', as the description calls the patterns. I found it really hard to find a good path that I liked but this blog seems to have many nice ones.
You'll find that a lot of the QR code blogs will have a lot of repeats from other blogs (and sometimes, even from themselves. Especially on tumblr.) So it's easy to lose a lot of hours looking for a new path. It took me an especially long time since I refuse to create any mule characters to store more patterns on, and therefore had to choose a really simplistic path. :/