There are three main ways I like to re-invest profits into my eCom biz:
1. Product descriptions, q&a, and reviews. I recommend using Fiverr.
2. Blog posts. I recommend using Fiverr.
3. Customer service & sales virtual assistants. I recommend using Online Jobs.
You can see the rest of my recommended products, services, and apps here.
You can sign up for the academy here.