You're artsy...wanna make me a logo?

So I met with a friend and he asked me to make a logo.  I like graphic design even though I have never gone to school.  I have Illustrator and Photoshop.  So I left our meeting to get to work.  In an hour I created 11 sample logos for him. Huh..that was fun.  He picked out the one I really liked.   So now I can add this to my list of what I like to do.  I am not going to work for someone else to help them make money...what if I create my own Marketing Agency???