£20k A Year Micro Business From Home (Without Investment)

Not all businesses have to be huge. It is very possible to start a micro business from home that bring in a small amount of income. Me purchasing some overpriced potatoes online got me thinking as everything we purchase has a business behind it. Most businesses in the UK are in fact small business meaning they have no employees or less than 50. I wanted to spark everybody's thoughts around a micro business (or many) to get started.