Trying a New Medium!

Looking at all of Ironhead Studio's work, (from my last post), made me want to try my hand at sculpting. I've never done anything like this before, so I went out to Blick Art and picked up a small block of oil-based clay, an el cheapo pack of modeling tools and some armature wire. Between work and homework, I made a little horse head:

I'm still shocked it actually looks like a horse, rough as it is. Spent about 3-4 hours on it, and would gladly do it again. Except, I'd want to bump up the scale quite a bit. Getting down between the jowls underneath the head was annoying. Now I just have to figure out how to store it without the clay block. I just stuck the wire from the neck down into the clay so it would stay upright while I worked on it. Maybe a block of foam would work. 

Any tips for a beginner?