Offer easy tips for any problem and your readers will return every time they need some advice.
Grow your Blog Organically. Don't force/ask anyone to share, follow or comment on blog. Just focus on promotion.
E-commerce bloggers can gradually choose to write curated content from other websites/blogs. That always helps because a buyer will generally not spend much time surfing. He/she will appreciate it if you provide most of what they are looking for.