Which industry(s) to target in marketing?

@TheWindowCleanse, I would say about twelve of my customers are return customers including one $20 weekly and one $35 bi-weekly then the rest are monthly. Then I’ve got about six people who want me to call to check in with them from time to time.

When you say to canvas around my clients every time I go out, how do you measure that? I could spend an entire two hours and walk the city block, or take just about twenty minutes and hit the shopping center. How do you “measure it”?