I keep saying that eventually I'll train Cohen's articles for utility. We've not started competing in open so it's still a ways off (and open competition keeps getting pushed to the back burner when it comes to trial priorities). Anyway, what method do people find is best for teaching it? I have done zero scent-based exercises/games with Cohen, so I'd probably have to start from the very beginning. I've not bought the articles yet -- what can I do at home without them? Thanks!