I've heard that Dawn works great on fleas. We used it on our Rocky when he was itty-bitty and too young for the spot treatment. Also my friend Amy says she feeds her two dogs (can't remember the breed - something greyhound-like) garlic capsules and that does the trick.
I voted >$200 before I saw the answer, because I have 6 cats and 3 dogs and I know damn well what they cost.
Bri you are welcome to eat dinner with us on Christmas, though tacos sound pretty good, too.