Have you ever tried hitting a clay pigeon with a single bullet? It takes some serious skill or a lot of luck, but most likely a lot of both skill and luck.
Trying to generate a sale with only one marketing tactic is a lot like trying to hit a clay pigeon with a single bullet. Chances are pretty high that you won't get that sale.
Just as a clay pigeon is meant to be hit by dozens of pellets from a shotgun shell, a sale is meant to be generated by using a variety of marketing tactics. Keeping this simple analogy in mind will help you take a broader approach to the tactics you use in 2019.
But while we're on the topic, let us help you do some brainstorming for the coming year.