Simply Drawer Liners
God other people are GRUMPY! Give them something for free and they just moan. My experience is this works pretty well and does something I am not able to do myself for free. Worth a go at the very least and personally I would say thank you to the people who made this available.
This is a great app for our store, it has got me started with json, but having dug a bit deeper, I think that it would be really great if this was more configurable. json markup is huge and the code injected only covers some of what you can give google for certain products and blog posts/articles. I'm also interested in the other review that mentions that not all the markup is there for Google Shopping. This is important to our store so I will dig deeper around this.