I tried the local business approach with warm brownies just from the oven to go along with my literature. The office people dug the brownies, but were not interested in my elevator speech. I felt very discouraged and would rather spend an hour at a networking event than feeling like an annoyance.
On the other hand, one of my clients does a majority of her marketing by visiting local businesses and she does great job! I guess it all depends on the person. I probably looked desperate and scared. LOL
Dawn