We use cheddar cheese cubes (slightly melted in the microwave) use a plain one first and a "doctored one" as a chaser. Fools our Malamute x and he's way smarter than our Chi x. The cats we use a similar method wvdek described.
We have no probs. with fleas or ticks - we just use soap with Neem Oil in it...but we do worm regularly.