Heartgard and either Frontline Plus or Certifect (Frontline + low dose amitraz).
Has anybody used that longterm use (8 months I think?) flea/tick collar, Seresto? It's supposed to repel fleas and ticks as well as kill them. We have tons of ticks here, and while Frontline reliably *kills* them, I still end up pulling dead ticks off my dogs, which is gross.