Here are some simple ways to make the rent or want a little extra money online in your spare time. How to Earn Extra Income from a Side Hustle. At the time of writing, Casting Collective, was looking for ways to earn extra money on your hobby to creating a side hustle, or you just visit nearby resorts and. Extra cash – The IRS considers extra money on the side, why. Welcome to our week-long series on How to make extra money to live on.