I can totally relate to these tips. I used to do in-home computer service and I advertised on self made signs all around the city. Got a lot of calls but not a lot of conversions. The minute I put "Business Computer Service" on the signs, I got the same amount of calls and nearly every call was converted into an appointment. And now that they had a reliable computer person, they continued to call. I was able to raise my prices by 40%, hire a few employees, get some funding and eventually sell the business. I'll never forget how adding that one word was liked a magic trick.