After decades of selling products—and knowing exactly what people are buying, and when they are buying it—Amazon has started cutting out the middle-man by selling self-produced items. Through its AmazonBasics house brand, it sells all sorts of small items, from iPhone chargers, to batteries, power strips—even foam rollers, backpacks and washcloths. It’s the sort of stuff that you might not be too brand loyal over—who really minds whether it’s a Duracell or a Panasonic battery? Amazon sees that a product is selling well, and may decide to work with manufacturers to make the product itself—it’s a tactic that is already worrying vendors, and can’t bode well for partnerships in the long run. But those are the obvious instances. Now, Amazon is selling products across a wide array of categories, using a host of brands that do not exist outside the confines of amazon.com and do not make it clear that they are Amazon-made products.

This is a common business practice and it’s smart too. I remember one oil company in Canada that would look at what it spent the most money on each year and then either buy the company or do it themselves. Each year, more money stayed within the confines of the main company.