Shopify is another great option if you are wanting to create your own eCommerce store. Shopify is arguably easier to set up than WooCommerce but will give you less control over your storefront and cost you more long term. However, if you have little to no experience of creating websites or using WordPress, or you are working to a very tight time schedule, then Shopify may be the perfect eCommerce platform for you.
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.