Ebates ($10 free signup bonus): Shop online through their website at more than 2,000 stores like Sephora, Macy’s, and Apple. Ebates members also special discounts, promo codes, and coupons. You earn cash back with each purchase and will receive it in the form of a check or through PayPal. If it’s already cheaper to shop online, why not make it even cheaper?
As you likely know, Airbnb is a popular website where people can rent out a room or apartment from ordinary folks and bypass a hotel. So, if you’re comfortable with strangers and you live in fairly well visited place — a large city, college town, or tourist area, for example — you could make some money renting out a room in your home while you’re there, or renting out the entire place while you’re gone. You can expect to make less than whatever nearby hotels charge, but that can still top $100 a night pretty easily. In fact, Airbnb is the most lucrative of all the sharing economy gigs, according to one study.
One of the cool things about Google AdSense is that it's so easy to get set up. If you have a blog or website, you can sign up for a free Google AdSense Account. From there, Google will give you a unique code that you will paste onto your website. Google takes it from there, tracking your page views, traffic, and earnings on your behalf. There is no upkeep or maintenance to get this thing going, which makes it a no-brainer if you have a website already.