One of the great things about the Internet is that it can connect people and companies almost instantly, and companies have found out about it. Companies have found that they can receive almost instant feedback about their products, services, or ad campaigns through the Internet. This is called market research, and before it used to take companies hundreds of thousands of dollars and many months to find average and sometimes outdated data.
Have a yard sale to sell things you no longer need. Choose a day or a couple of days to have your yard sale. Advertise it in your local paper and online, such as on social media and classified websites. Then, on the day of the sale, arrange the items on tables, blankets, shelves, or in other ways in front of your home. You can arrange the items into groups by price, or price them individually.