How to Set Up a Facebook Store

How do you set up a Facebook page as a store?

On my Facebook page I post new items at least weekly. I also write a description and the price on most items. I have had many friends see an item and ask me to hold it for them until they can get into the store.
I also have a link to my Etsy page listed with my photo album for the things I post there. That way if someone sees something they like I can run a transaction through Etsy for a sale that may not be local. Etsy charges a .20 listing fee and  3.5% of the sale.