I do art fairs in the summertime, and sell jewelry through my website and at a few shops. When making handmade things, pay attention to the things you make that garner lots of compliments, or the items that people comment on as being most unique. With a solid base of good feedback, you'll soon find that it's a natural progression to getting your stuff out into the world! I was always interested in making things, and found that rather than trying too hard to pick something to concentrate on, that thing kind of picked me. My background includes classes in Advertising, Public Relations, Graphic Design, and I'm glad I have that knowledge to fall back on. This way, I don't have to pay someone to create an ad for me, or to design my business cards. Although I do wish I would have taken some business classes, I think you can learn a TON simply through trying things and making mistakes. I wouldn't have the knowledge/experience to quit my day job and open up a shop tomorrow (my ultimate dream- to support myself through my art), but I do feel that I will have that experience gradually built up over the next 5-10 years.