There are countless marketing methods.
For instance the traditional marketing methodology (or direct marketing) utilizes print ads, direct mailing, billboards, radio, TV, and cold calling while the Inbound Marketing methodology (or indirect marketing) utilizes blogging, content offers, email campaigns, podcasts, retargeting, SEO, and social media.
The question of the moment is this: Do you have to market using every method in order to increase sales? The answer is...
NO.