What are /r/bigcommerce's favorite Products & Services?

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Haven't used it myself - but Zapier might be the route you want to go with. There might be a better built-in way that I'm not aware of, but Zapier should get the job done.

I am really happy with BigCommerce. I was using some of their apps to help me advertise my products. The one I liked the most is Clever AdWords, it really helped me boost the traffic of my store. Which apps do you use and recommend? Do you have any suggestions?