This 12x3 inch piece of foam has saved me on several occasions. It's such a useful tool, I even bring it with me on trips, especially when I'm planning on hiking for several days.
I've put together a short video showing my favorite exercises with the short half roller.
With a price point below $10, you really can't beat it as one of the best tools to get for your home practice.
Purchase your short half foam roller here.
Want even more ideas for how to use a foam roller? Check out this post.
Feel at ease in each class you teach