Have you ever thought about selling raw milk to make money on the homestead? Please keep in mind that in some states there are laws prohibiting certain kinds of sales of raw milk such as selling across state lines.
Below is a video from VW Family Farms on how one family offsets the cost of feeding all of their animals on the homestead through the sale of milk. They get about 4 -5 gallons a day from a cow however, they do have several cows on their property. There may be costs involved in starting. For instance they decided to go with a milker rather than doing it by hand. She does mention some advantages such as the cow pooping at the time of milking. There is also the equipment used to strain the milk and jars that you will use. Click on the video below to learn more.