THooper - You can propagate AVs by sticking a leaf in a pot of moistened soil. It can take quite a few weeks to happen, but 2 to 5 individual plants can be propagated from just one leaf.
LittleLizzard - I agree. I propagated from leaves once and lost most of my babies because I separated them too soon. This time I will wait until the leaves either become nickel sized or until they are just too big for the container.
Here's the setup I have now:
I have the leaves in little 3 oz cups. I put holes in the bottoms of them. The tops are 9 oz cups inverted. Lots of people have different methods though. Some people root in water. Some don't enclosing.
BTW, all the cups came from the dollar store!