Here’s an approach to aggressive marketing that I don’t recommend, but perhaps there’s something to take from it.
Police in the US said that a woman they dubbed a real-life “cleaning fairy”, broke into a house and a left a bill for the housework she did. According to police, the woman entered the residence while homeowner Mallory Bush slept, did some light cleaning and then left a bill for $75 on a napkin before leaving. Unfortunately for the “cleaning fairy,” crime didn’t pay and she was arrested.
Now obviously you can’t go breaking into houses. Nor can you force work or products on people and then charge them. But if you can find a way to ethically give your potential customers a ‘free sample’ of what you sell or what you do, it could be a great source of new business. I’ve experimented with this by giving away free books, and people really seem to appreciate it and respond well.