The Simple Dollar » 50 Side Businesses You Can Start On Your Own
http://www.thesimpledollar.com/2009/04/11/50-side-businesses-you-can-start-on-your-own/

Each of these ideas is very simple to start, and most can be done as a sole proprietorship at first (meaning you don’t have to file any legal documents to get started, though you will want to do that if it starts to take off). Most of these can be done at home in your spare time in your spare space, too. Ready? See if there are any ideas below that fit you well. If you find an idea, seek out a guide on how to get started in that area.