The Lickety Stick is an awesome training and behavior modification tool. The neat thing about it is that your dog simply licks the end of it receiving a delicious taste of liver, chicken, etc. There are 500 licks in a bottle and only 1 calorie per ten licks.
Additionally, there is no mess or dropping of treats. So it's great to use not only for obedience training but also when visiting the veterinarian, trimming nails, giving your dog a bath, etc. Michael uses it himself and highly recommends it.