1. eBay home business. eBay is a fantastic work from home business. Whether you are a student, single mum or dad this can be a great way of quickly getting up and running in just a few hours.
What I suggest you do is start out selling your own items you don't need in your house to build up your feedback score and then become a reseller of information products that people want. Good markets are health, wealth and dating and relationships. Just choose a sub niche in either of these markets.
eBay has also the advantage of you not trying to find traffic and people searching on eBay are hungry buyers and so building a buyers list can make you an income for years to come.
2. Affiliate Marketing. This is where you earn a commission from other people's products if they buy through your link. The great advantages is that someone else has spent the time and money creating a quality product and you get to benefit from that by selling it. Also you won't have to ship out the product unlike eBay as the product creator will do that for you and they will handle all the customer support issues.
To get started as an affiliate I suggest you sign up to affiliate programs like clickbank.com or commission junction and have a look at the market place there. I would say it's best to purchase a copy of products you want to sell for a commission as you need to know if the product is quality and does what it says in its terms and conditions.
The other way you can become an affiliate is approach a company of products you really like in your market and contact the owner and ask if you can become an affiliate.
3. Selling your own information products. This may sound daunting but really it is not. For instance you could create a simple e-book giving information on a particular topic you know about and charge $27. Or you could let other people do the hard work and interview some experts in your niche and record the interview using Pamela for Skype software and upload it to amazons3 server which is free and you're up and running with a downloadable product you can sell for $47.
You can add higher priced products to your portfolio over time, giving you a very profitable and sustainable business.You could also add in upsells after customers initially purchase your low cost front end product.
Anyway I hope that was very helpful for you. A work from home business does not have to be complicated.You can easily do this and yes it may take a few weeks to learn some new skills but the process is very simple and if you take action on this information you can achieve amazing results.