If you are serious about working from home and earning a full or part-time income, there are a few options available to you.
Creating multiple streams of income from various sources is the key  ingredient in your overall success.
Below I will outline some of the better options for you to consider.

1. eBay has to come in at number 1 because for millions of people it is the very best and easiest platform for making money.
   I use eBay everyday to earn an income.
   Buy low and sell high is the key component.
   Also research into various niches will net you the most money.
   
2. Affiliate Marketing is a little harder than eBay, but the extra effort is worth it.
   You do not  need a website or a product.
   Just find a product to promote and start sending people to it.
   You can post in forums or start a blog.
   Give some helpful advice to the problems people are having and then mention an affiliate product you are promoting.
   If they buy it, then you earn a commission.
   
3. Combination of eBay and Affiliate Marketing! This has to be the best option for creating a lasting full or part-time income.
   When you combine the power of eBay and the ease of affiliate marketing you have the best of both worlds.
   There are many ways to do this, but I am going to throw out one ideal for you.
   Do you use your "about me" page like you should? Did you know that you can have an outside link to a website on this page? If you are not using this method to get traffic to your offer then you are missing out.
   

I have given you a couple of ways to get started.
There are many other methods that you can use to create a home based business.
The key is to set up multiple streams of income.
That way if one stream dries up, then you have another one that will provide you with an income.