Include data in blog posts. It makes the post more interesting and informative to read. It makes people stay longer on your pages and even share your content.
E-commerce bloggers must carefully write keeping their audience in mind. Everything you post on your blog will speak for your product or service. Your interaction with bloggers in comments and otherwise will give you a direction.
1 per day: If you have just started blogging, then writing consistently might take time. So set a target to have 1 post per day that is well researched.