A question for all you guru photographers out there...

Do you sell your photographs?

I'm looking into this when I go on maternity leave to earn some money if possible. I was wondering what sort of things I would need to consider to sell my photographs.

Things like:
-Copyright - how do I 'protect' my photos
-Where to sell them (eg via website, etc)
-How much to charge?
-How to print them - canvas, framed, laminated, sizing, etc

Would really appreciate your thoughts and ideas! Thanks