> "Most of them are what you could refer to as kitchen chemistry," says Cook. "Using things you can find in your kitchen - baking soda or vinegar." Cost saving

> "Most of them are what you could refer to as kitchen chemistry," says Cook. "Using things you can find in your kitchen - baking soda or vinegar." Cost savings, a moral high-ground, and buyers who won't use the product themselves. It's an unholy trinity.